In a monomolecular reaction A->B , at t =250C, the initial concentration decrease at 25% in t =52 min. Calculate:

a) the constant rate;

b) the time after the initial concentration decrease with 75%;

c) the initial reaction rate, if the initial concentration of the reactant is 2.5 mol/L·s

Answers

Answer 1

1) The rate constant is  9.22 * 10^-5 s-1

2) The time taken is 15033 s

3) The initial concertation  is  9.22 * 10^-5 M

What is the rate of reaction?

We can define the rate of reaction as the rate at which reactants are converted into products or the rate of which reactants disappear and the products appear in a given reaction.

We are told that in this reaction as we can see, the initial concentration decrease at 25% in t =52 min.

Initial concentration [A]o =  [A]o

Final concentration =  [A]o - 0.25  [A]o = 0.75 [A]o

Time taken = 52 min or 3120 s

We have that;

ln[A] = -kt + ln[A]0

k = -(ln[A] -  ln[A]0)/t

k = - (ln0.75 [A]o/A]0)/3120

k = 9.22 * 10^-5 s-1

b)

Given that

[A] =  [A]o - 0.75  [A]o = 0.25 [A]o

ln[A] = -kt + ln[A]0

t = -(ln[A] -  ln[A]0)/k

t = - (ln0.25 [A]o/A]0)/9.22 * 10^-5

t = 15033 s

c) When the rate is 2.5 mol/L·s

k = - (ln0.25 (2.5)/ln(2.5))/15033

k = 9.22 * 10^-5 M

Learn more about rate of reaction:https://brainly.com/question/8592296

#SPJ1


Related Questions

Why is KMnO4 regarded as a secondary standard solution ?

Answers

Potassium permanganate is not used as primary standard because is not able to release in MnO2 in the reaction. According to the above discussion, we conclude KMnO4 is used as the secondary standard. It is also hygroscopic in nature.

What is Secondary Standard solution?

A solution created especially for a certain analysis is known as a secondary standard solution. A substance whose active agent contents have been identified by comparison with a primary standard is referred to as a secondary standard. This indicates that it is frequently standardized against a fundamental standard.

Analytical tools and methodologies are calibrated using secondary standard solutions.

The molecular formula of potassium permanganate is KMnO4. Potassium permanganate is one of the oxidising agents in chemistry. Potassium permanganate is not used as primary standard because is not able to release in MnO2 in the reaction. Potassium permanganate is always in the stable form. The reason KMnO4 is also used as a colour indicator in analysis.

According to the above discussion, we conclude KMnO4 is used as the secondary standard. It is also hygroscopic in nature.

to know more about secondary standard solution from the link

https://brainly.com/question/18720754

#SPJ10

Is there any limit to the distance through which diffusion can occur?

Answers

Answer

Yes, there is a limit to the distance through which diffusion can occur. This is because diffusion time increases with the square of diffusion distance. Diffusion time is inversely proportional to the diffusion coefficient. hus, if the diffusion distance is small, diffusion happens faster because the particles do not have as far to travel.

2.Consider the relationship between the temperature and pressure of a gas, when the volume is held constant. Is the relationship directly proportional or indirectly proportional? 3.Which gas law does this demonstrate?

Answers

Explanations:

According to the pressure law, the pressure (P) of a fixed mass of a gas is directly proportional to its absolute temperature (T) provided that the volume remains constant. Mathematically;

[tex]\begin{gathered} P\alpha T \\ P=kT \\ k=\frac{P}{T} \end{gathered}[/tex]

k is the variation constant

If we have initial and final pressure and initial and final temperature, the formula can be written as:

[tex]k=\frac{P_1}{T_1}=\frac{P_2}{T_2}_{}_{}[/tex]

3) The gas law that demonstrates the equation and definition above is known as the PRESSURE LAW.

The reaction HCl(1) + H₂O(1)→ H30(aq) + Cl(aq) can be abbreviated as HCI → H+ + CI™.
How is this apparently important omission justified?
A)
It's understood that H+ doesn't exist on its own in water, and H30(aq) + Cl(aq)
are both aqueous.
B) It's generally understood that H3O+ is a hypothetical intermediary.
OC) Because water isn't important to the reaction
D) It isn't justified, and the abbreviation is an error.

Answers

Reaction - It's understood that H+ doesn't exist on its own in water, and H₃O⁺(aq)⁺Cl⁻(aq) are both aqueous.

What is Reaction?
An act that changes one group of chemical constituents chemically into another is known as a chemical reaction. Chemical reactions typically involve changes that only influence the positions of electrons in the formation and dissolution of chemical bonds between atoms, with no change to the nuclei. Chemical processes are commonly described by a chemical equation (no change to the elements present). The study of chemical processes involving unstable and radioactive elements—where both electronic and nuclear changes may take place—is known as nuclear chemistry.

When Acid HCl react with water it dissociates as H⁺ + Cl⁻ ion. H⁺ is a proton (Hydrogen ion is a proton with the charge on it) but this single unit of the charge is very small as compared to it value of the solution is water and acid. The resulting extraordinary high change desity of the proton strongly atom or molecule in ehich there exist an excess of the
⁻ve charge. In the case of water, the lone pair (e⁻) on oxygen attract the proton and form a co-ordinate bond with it creating a hydronium ion (H₃O⁺)

To learn more about Reaction
https://brainly.com/question/24795637
#SPJ9

Answer:

It's understood that H+ doesn't exist on its own in water, and H30(aq) + Cl(aq) are both aqueous.

Explanation:

took quiz

Write the ions present in solution of Pb(C2H3O2)2 .

Answers

From the chemical structure of the compound that is clearly shown in the question, the ions that should be in the solution are;  lead II ion and the acetate ion.

What are ions?

The term ions has to do with the species that have a positive charge or a negative charge. Thus we could define an ion as as a charged specie. The charge could owe to an excess of electrons in which case the charge is negative or due to a deficiency of electrons which gives us a positive charge.

Looking at the compound that is in solution, we can see that the ions that are present are lead II ion and the acetate ion.

Learn more about ions:https://brainly.com/question/14982375

#SPJ1

How does the availability of WATER affect the growth of plants and animals?

Answers

Answer:

all living things need water. no water, no life.

How many grams of KClO3 are needed to produce 6.75 Liters of O2 gas measured at 1.3 atm pressure and 298 K?

Answers

Answer

29.3171 g KClO₃

Procedure

To solve this question consider the following chemical reaction:

2KClO₃→2KCl+3O₂

Then we will use the ideal gas formula to determine the number of moles present in 6.75 L of oxygen gas.

Data:

V=6.75 L

T= 298 °K

P= 1.3 atm

R= 0.08206 L⋅atm⋅°K⁻¹⋅mol⁻¹

Equation

PV=nRT

Solve for n to get the moles

[tex]n=\frac{PV}{RT}=\frac{1.3\text{ atm }6.75\text{ L mol }\degree\text{K}}{0.08206\text{ L.atm 298}\degree\text{K}}=0.3588\text{ mol O}_2[/tex]

Use the stoichiometry of the reaction to convert from moles of oxygen to moles of KClO₃.

[tex]0.3588\text{ mol O}_2\frac{2\text{ mol KClO}_3}{3\text{ mol O}_2}=0.2392\text{ mol KClO}_3[/tex]

Finally, convert from moles to grams

[tex]0.2392\text{ mol KClO}_3\frac{122.55\text{ g KClO}_3\text{ }}{1\text{ mol KClO}_3}=\text{ 29.3171 g KClO}_3[/tex]

im confused help me please

Answers

The energy of an orange lamp with a frequency of 5.10 x 10¹⁴ Hz is 3.38 x 10⁻¹⁹ J.

What is frequency ?

Frequency is defined as the number occurrences of repeated events per unit of time. SI unit is hertz (Hz).

Briefing:

Using the formula,

E = hν

where,

E = energy in joules (J)

h = Planck's constant =  6.63 x 10⁻³⁴ J

ν = frequency in hertz

Given :

Frequency = 5.10 x 10¹⁴ Hz

h = 6.63 x 10⁻³⁴ J

Putting the values,

E = (6.63 x 10⁻³⁴) x (5.10 x 10¹⁴) J

E = 3.38 x 10⁻¹⁹ J

The energy of an orange lamp with a frequency of 5.10 x 10¹⁴ is  3.38 x 10⁻¹⁹J.

To know more about Frequency visit:

https://brainly.com/question/14316711

#SPJ13

The complete question is -

What is the energy of an orange lamp with a frequency of 5.10 x 10¹⁴ Hz ?

2. What is the percent sulfur in iron (III) sulfate?

Answers

Step 1

The chemical formula of iron (III) sulfate is the next one:

Fe2(SO4)3

As we can see, there are 3 x 1 atom of S, 3 atoms of S

----------------

Step 2

Information needed:

The atomic masses of:

Fe) 55.8 g/mol

S) 32.0 g/mol

O) 16.0 g/mol

(Please, the periodic table is useful here)

----------------

Step 3

The % of S in Fe2(SO4)3 is calculated as follows:

[tex]\frac{3\text{ x 32.0 g/mol of S}}{(2\text{ x 55.8 g/mol Fe + 3 x 32.0 g/mol S + 3 x 4 x 16.0 g/mol O\rparen}}x100\text{ = 24.0 \%}[/tex]

Answer: 24 % of S

Compare the reactivity of the alkali metals family with the reactivity of thehalogen family. (2 points)

Answers

The alkali metals grow more reactive as you move down the group, but the halogens become less reactive as you move down, which is one distinction between the reactivity of the groups. The most active halogen is fluorine, whereas the most active naturally occurring alkali metal is cesium.

What are halogens and alkali metals ?

The features of the halogen elements' compounds with other elements and their overall chemical behavior are remarkably similar to one another. However, there is a progressive change in characteristics from fluorine through chlorine, bromine, and iodine to astatine, with fluorine and chlorine having the most marked differences between two succeeding elements. In addition to being the most reactive halogen and element overall, fluorine has a few other characteristics that set it apart from the other halogens.

Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium are alkali metals, which are elements of group 1. (Fr). Since they only have one electron in their valence shell, they are extremely reactive and strive to adopt the stable octet configuration of the noble gases. The alkali metals exhibit metal properties such as strong thermal and electrical conductivity, lustre, ductility, and malleability. In the outermost shell of each atom of an alkali metal, there is just one electron.

The alkali metals grow more reactive as you move down the group, but the halogens become less reactive as you move down, which is one distinction between the reactivity of the groups. The most active halogen is fluorine, whereas the most active naturally occurring alkali metal is cesium.

To know about halogens and alkali from the link

https://brainly.com/question/1450671

https://brainly.com/question/19109836

#SPJ4

1. For the reaction CO(g) + NO₂(g) → CO₂(g) + NO(g), a CO₂ concentration of 0.040
moles/liter was measures at 2 seconds. What was the average reaction rate
for this reaction? (Please note that at t = 0, no CO₂ was present.)

Answers

Average reaction rate is 0.02 mol/liter/sec

What is an average reaction rate?

Change in concentration divided by the change in time gives average reaction rate. The rate of a chemical reaction is measured in mol/l/s.

Average rate is defined as the change in molar concentration of either reactants or products in time is called as average rate. The concentration of reactants decreases during reaction, whereas the concentration of products keeps on increasing until an equilibrium is reached.

Evaluating an average rate shows the amount of change of one variable with respect to another. The other variable is generally time that describes the average change in distance or chemical concentrations.

For the given reaction

CO(g) + NO₂(g) → CO₂(g) + NO(g), a CO₂

concentration of 0.040

moles/liter was measured at 2 seconds.

Average reaction rate = concentration/ time

0.040/ 2

=0.02 mol/l/sec

To know more about average reaction rate, refer

https://brainly.com/question/14189499

#SPJ13

What is ph of .530 M solution of carbonic acid that has acid dissociation of 4.4 x 10^-7

Answers

Answer

pH = 3.32

Explanation

Given

Acid dissociation of carbonic acid (Ka) = 4.4x10^-7

Concentration = 0.530 M

Solution

The carbonic acid dissociates into:

[tex]\begin{gathered} H_2CO_3\rightarrow\text{ H}^{+\text{ }}+\text{ HCO3}^- \\ \end{gathered}[/tex][tex]\begin{gathered} Ka\text{ = }\frac{[H^+][A^-]}{[HA]} \\ [H^+]\text{ = \lbrack A}^-] \\ Ka\text{ x \lbrack HA\rbrack= \lbrack H}^+]^2 \\ 4.4\text{ x 10}^{-7}\text{ x 0.530 = \lbrack H}^+]^2 \\ 2.332\text{ x 10}^{-7}\text{ = \lbrack H}^+]^2 \\ 4.816\text{ x 10}^{-4}\text{ = \lbrack H}^+] \\ \\ \end{gathered}[/tex]

Now we can calculate the pH

pH = -log[H+]

pH = -log[4.816x10^-4]

pH = 3.32

How many grams of hydrofluoric acid are formed when 173.63 grams of hydrogen (H2) react with 173.63 grams of fluorine (F2):


H2 + F2 rightwards arrow 2HF

Answers

The amount, in grams, of hydrofluoric acid that will be formed when 173.63 grams of hydrogen reacts with 173,63 grams of fluorine would be 182.8 grams.

Stoichiometric problem

The balanced equation of the reaction is written as:

[tex]H_2 + F_2 -- > 2HF[/tex]

According to the equation, the mole ratio of hydrogen and fluorine that react to produce hydrofluoric acid is 1:1.

Recall that: mole of substance = mass of the substance/molar mass

Molar mass of [tex]H_2[/tex] = 1x2 = 2 g/mol

Molar mass of [tex]F_2[/tex] = 19x2 = 38 g/mol

Mole of 173.63 grams  [tex]H_2[/tex] = 173.63/2

                                             = 86.82 moles

Mole of 173.63 grams  [tex]F_2[/tex]  = 173.63/38

                                        = 4.57 moles.

Considering the mole ratio of the two reactants, it appears that fluorine is limited in availability and will, therefore, determine the amount of hydrofluoric acid that will be produced.

Mole ratio of fluorine to hydrofluoric acid = 1:2.

Equivalent mole of hydrofluoric acid = 4.57 x 2 = 9.14 moles.

Mass of 9.14 moles HF = 9.14 x 20

                                     = 182.8 grams

Thus, the amount of hydrofluoric acid formed from the reaction is 182.8 grams.

More on stoichiometric problems can be found here: https://brainly.com/question/15047541

#SPJ1

- For one of the valence electrons in the Helium atom, do you think the pull on that electron would be greater than,
less than, or equal to the pull on the Hydrogen atom's valence electron? Use Coulomb's law to support your
answer.

Answers

The Hydrogen atom's valence electron Fluorine attracts electrons better than any other element.

The more electronegative atom pulls the bond electrons harder so the shared electrons spend more than half of the time on the more electronegative atom, giving it a partial negative charge. For example, in water O is more electronegative than H and thus has a partial negative charge.

The higher the ionization energy the stronger the attraction between the nucleus and the valence electrons requiring more energy to remove the valences. electronic. The further away the electron is from the nucleus the more likely it is to be ejected. In other words, ionization energy is a function of atomic radius. The larger the radius the smaller the amount of energy required to remove an electron from the outermost orbital.

Learn more about Hydrogen atom's here:-https://brainly.com/question/17925264

#SPJ1

Starting with the following equation,

Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s)

calculate the moles of Fe₂O₃ that will be required to produce 645 grams of Fe.

Where do i start and how do I calculate? Need help please

Answers

The number of moles of Fe₂O₃ that will be required to produce 645 grams of Fe is 5.78 moles

How to determine the moles of Fe₂O₃ needed

We'll begin by obtainig the number of mole of Fe. This can be obtained as follow:

Mass of Fe = 645 gramsMolar mass of Fe = 55.85 g/molMole of Fe =?

Mole = mass / molar

Mole of Fe = 645 / 55.85

Mole of Fe = 11.55 moles

Finally, we shall determine the number of moles of Fe₂O₃ needed. Details below

Fe₂O₃(s) + 2Al(s) → 2Fe(l) + Al₂O₃(s)

From the balanced equation above,

2 moles of Fe were produced from 1 mole of Fe₂O₃

Therefore,

11.55 moles of Fe will be produce from = (11.55 × 1) / 2 = 5.78 moles of Fe₂O₃

Thus, the mole of Fe₂O₃ needed is 5.78 moles

Learn more about stoichiometry:

https://brainly.com/question/14941771

#SPJ1

Determine the empirical formula for each of the following compounds:19% tin and 81% iodine

Answers

Answer

The empirical formula for this compound is SnI₄

Explanation

Given:

% composition: 19% tin and 81% iodine​

What to find:

The empirical formula for the compound

Step-by-step solution:

Assume we have 100 grams total of the substance.

Grams Sn: 19 g

Grams I: 81 g

Now, let's convert the number of grams of each element into moles below:

Moles Sn: 19 g/118.71 g/mol = 0.16 mol

Moles I: 81 g/126.90 g/mol = 0.64 mol

Finally, let's divide the number of moles of each element by the smallest number obtained:

Sn = 0.16/0.16 = 1

I = 0.64/0.16 = 4

Therefore the empirical formula for this compound is SnI₄

Neon has three stable nautrally occurring isotopes. The isotopic mass and percent abundance of these isotopes are given inthe table.Isotope20 Ne21 Ne22 NeIsotopic mass (u)19.9920.9921.99Abundance (%)90.480.2279.25Calculate the average atomic mass of neon.

Answers

To calculate the average mass of Ne (neon), we have to use this formula:

[tex]\text{Average atomic mass = }\frac{\sum ^{}_{}(\text{mass of isotopes)x(abundance \%)}}{100}[/tex][tex]\begin{gathered} \text{Average atomic mass = }\frac{(19.99ux90.48+20.99ux0.27\text{ +}21.99ux9.25)}{100} \\ \text{Average atomic mass = }20.18\text{ u} \end{gathered}[/tex]

The average atomic mass of Ne = 20.18 u

Predict the missing component
in the nuclear equation.
209/84 Po → 205/82 Pb + X

Answers

The missing component in the nuclear equation [tex]\frac{209}{84} Po\\[/tex] → [tex]\frac{205}{82}Pb[/tex] + X is predicted to be [tex]\frac{4}{2} He[/tex].

This nuclear reaction is form of an alpha decay process. In this alpha decay process, the nucleus gets decayed through the release of an alpha particle. The mass number of the nucleus is decreased by 4 units and atomic number of the nucleus is also reduced by 2 units. The particle which is released is nucleus of helium.

The general equation which represents the alpha decay process is -

[tex]\frac{A}{Z} X[/tex] → [tex]\frac{A-4}{Z-2} Y[/tex] + [tex]\frac{4}{2} \alpha[/tex]

The nuclear equation is -

[tex]\frac{209}{84}Po[/tex] → [tex]\frac{205}{82} Pb[/tex] + X

We will balance the reaction and we have to remember in balancing the nuclear equation is that the sums of the superscripts and the subscripts has to be the same on both sides of the equation.  

Sum of superscripts : 210 = 206 + y,

                                   so, y =4.  

Sum of subscripts : 84 = 82 + x,

                                    so, x = 2.

Therefore, the nuclear equation is -

[tex]\frac{209}{84} Po[/tex] → [tex]\frac{205}{82} Pb[/tex] + [tex]\frac{4}{2} He[/tex]

Hence, the missing component is [tex]\frac{4}{2} He[/tex].

To learn more about nuclear equation,

brainly.com/question/21084363

#SPJ1

What does the author describe in this passage?
The author describes different types of t-shirts.
The author describes reasons for moving to New York City.
The author describes two types of energy.
The author describes the dangers of riding in taxis.

Answers

The author describes about two types of energy, in this passage which is motion energy and heat energy.

What are motion energy and heat energy?

The energy that results from the movement of atoms and molecules within a substance is known as thermal energy, also known as heat energy. These particles generate more heat as they move more quickly. The thermal energy of the earth is referred to as geothermal energy.

Motion energy is energy that is held in the motion of objects. More energy is stored as they move faster. Energy is required to start an object moving, and energy is released when an object slows down. Motion energy includes things like the wind. A car crash is a dramatic example of motion energy; the vehicle comes to a complete stop and abruptly and uncontrollably releases all of its motion energy.

Learn more about motion energy

https://brainly.com/question/25524000

#SPJ9

What is the total moles of particles in 3.0 L of each of the following solutionhalf-normal NaCl , 0.40 % (m/v) , used to provide electrolytesExpress your answer using two significant figures.

Answers

The given concentration, 0.40% (m/v), is a mass volume percent concentration. It indicates us that there are 0.40g of NaCl in every 100mL of solution.

We can use this information to detemine how many grams of NaCl are there in 3.0L (3000mL) of solution:

[tex]3000mL\cdot\frac{0.40g}{100mL}=12g[/tex]

Now, convert this amount of mass to moles using NaCl molar mass:

[tex]12gNaCl\cdot\frac{1molNaCl}{58.44gNaCl}=0.20molNaCl[/tex]

It means that the corect answer is 0.20 moles of NaCl.

The lithium-iodine battery is used in pacemakers to generate small electrical impulses that trigger the heart to beat according to the following equation. Identify
the species oxidized.
2 Li(s) + I2 (s) → 2 Lil(aq)

Answers

Answer:

The species that oxidizes is lithium, or Li

Explanation:

Since I2 is know to be a halogen, and halogens are oxidizers, iodine is probably not the species being oxidized. So, Li is being oxidized.


Another way to look at the problem is to assign oxidation numbers to all elements on the right and left

The left:
lithium = 0
iodine = 0
Both are 0 since they are in their most stable elemental states

The right:
lithium : +1
Iodine: -1

When something looses an electron and becomes more positive, it is oxidized. Lithium goes from 0 to 1, clearly displaying a rise in oxidization state. So, lithium is being oxidized.

Please help with this

Answers

Answer:

its the 3rd one

Explanation:

Water, table salt, and tin metal are all pure substances. Which of these pure substances are compounds

Answers

Answer:

water and salt are compounds, water is H2O and table salt is NaCl.

tin is just a metal, an element, not a compound.

hope it helps, mark as brainliest :D

Convert 62.00nm/s to pm/ms

Answers

62.00 nanometres per second is equivalent to 62 picometre per milliseconds

How to convert picometers to nanometres?

Picometers is a SI unit of length equal to 10−¹² meters with a symbol pm while nanometres is another SI subunit of length equal to 10-⁹ metres with symbol nm.

The conversion factor of picometers and nanometres is as follows:

1 picometre = 0.001 nanometre

This means that 62 nanometre will be equal to 62000 picometres.

1 second = 1000 milliseconds

62000/1000 = 62 pm/ms.

Therefore, it can be said that 62.00nm/s is the same as 62 pm/ms based on the conversion factor above.

Learn more about conversion factor at: https://brainly.com/question/20525485

#SPJ1

Cells can regulate different processes in two ways. They can turn on and off the genes that make enzymes, or they can Question 16 options: A) decrease the amount of energy needed to carry out the preferred process. B) increase the activation energy of a reaction. C) regulate the enzymes that are already made. D) increase the amount of energy needed to carry out the preferred process.

Answers

In the process of metabolic regulation, cells can turn on and off the genes that make enzymes, or they can regulate the enzymes that are already made; option C.

What is the mechanism of regulation of metabolic processes that cells employ?

Metabolic processes are the processes by which the cell carries out its activities.

There are types of metabolic activities that occur in the cells:

catabolism, and anabolism

Catabolism is the metabolic process in cells by which large molecules are broken down to release energy required by the body to carry out other cellular actities. An example of catabolism is glycolysis.

Anabolism - this is a metabolic process in cells where energy is used to produce large molecules from the small molecules present in the cells. An example of catabolism is protein synthesis from amino acids.

The cells need to regulate these two processes and this is known as metabolic regulation.

The cells regulate these processes at the gene level that produces the enzyme that catalyzes these processes or by regulating the activity of the enzymes.

Learn more about metabolic regulation at: https://brainly.com/question/13063049

#SPJ1

Calculate % concentration of of solution prepared by dissolving 8.5 g of glucose (C6H1206) in 35 g of water24 %none of the other answers are correct1.35 %20.%4.1 %

Answers

- First, to calculate the % concentration of glucose in the solution, we need to add the 8.5g of glucose to the 35 g of water, to get the weight of the solution:

[tex]\begin{gathered} \text{solution weight=8.5g + 35g} \\ \text{solution weight=43.5g} \end{gathered}[/tex]

- Second, we calculate the %w/w (weight/weight) with the solute weight and the solution weight:

[tex]undefined[/tex]

- So,

(4.3) Congratulations, you've been hired by the Chemistry Department to prepare the chemicals
for G-Chem Lab. This week, 4.2 L of a 0.74 M HCl solution is needed. When you go to the
stockroom, you can only find a 4 L bottle of concentrated HCI solution which is 37% by mass HCI
and has a density of 1.1786 g/mL.
a. Calculate the molarity of HCI in the concentrated HCI solution. (Hint: Assume 1 L of
solution.)
b.
Calculate the volume (in mL) of the concentrated solution you'll need to dilute to prepare
the required solution for this week's lab.

Answers

Morality is the body of rules that enables individuals to coexist peacefully in groups. In order to act morally, people may have to sacrifice their own immediate interests in order to further society. It is what societies deem to be "acceptable" and "proper.

Explain molarity of HCI  in the concentrated HCI solution?

The standard by which society determines whether behaviour is appropriate and inappropriate is morality. Morality is demonstrated by the conviction that it is immoral to take something that is not theirs, even if no one would notice.

Hydrochloric acid is a colourless solution of hydrogen chloride (HCl) in water. Concentrated HCl is a particularly corrosive acid with several industrial uses. The pH levels of swimming pools are changed using this material, which is usually referred to as "muriatic acid" in this context, to make them safe to use and to disinfect the water.

Molarity is defined in terms of the volume of the solution, NOT the volume of water. Inaccurate = 5.0 The solution is humour.

To learn more about molarity refer to:

https://brainly.com/question/26873446

#SPJ13

To learn more about molarity refer to:

https://brainly.com/question/26873446

#SPJ13

Which substance contains particles with the highest average kinetic energy?
A. 1 kilogram of ice
B. 1 liter of water
C. 1 liter of water vapor
D. 1 kilogram of snow

Answers

Answer: C. 1 liter of water vapor

Explanation:

The average kinetic energy increases as follows.

Gas > Liquid > Solid

You can think about it as how fast and freely the molecules are moving in each state, with gases being the greatest.

The 14.7 g sample of graphite takes up a volume of 6.6 cm^3. What is the density of graphite?

Answers

The density of graphite that has a volume of 6.6cm³ and a mass of 14.7g is 2.23g/cm³.

How to calculate density?

Density is the measure of the mass of matter contained by a unit volume.

The density of a substance can be calculated by dividing the mass of the substance by its volume as follows:

Density = mass ÷ volume

According to this question, graphite has a volume of 6.6cm³ and a mass of 14.7g. The density of this substance can be calculated as follows:

Density = 14.7g ÷ 6.6cm³

Density = 2.23g/cm³

Therefore, 2.23g/cm³ is the density of the graphite.

Learn more about density at: https://brainly.com/question/21461758

#SPJ1

The energy stored in the chemical bonds of a carbohydrate molecule isA. specific heat. B. Kinetic energy. C. potential energy. D. worked.

Answers

Answer

C. Potential energy

Explanation

A carbohydrate molecule has chemical bonds, Potential energy is available between chemical bonds.

Other Questions
8. Why does Johnnys death break, Dally? in the outsider will give brainliest PLS HURRY 2-3 GOOD paragraphs 30g 25into second please solve its optional math question please solve it carefully its my project so question is 30grade25 into second. 4/7x = 28 solve for x simplify your answer as much as possible a 25 year-old patient presents complaining of a sore throat and swollen glands in the back of her neck. upon exam, erythema and white purulent exudates are noted in the tonsillar region. results of streptococcal antigen tests were negative and the patients monospot test is pending. cbc with differential normal blood values with the exception of 60% lymphocytes on the differential, 30% of which are "atypical."which is the most likely cause of the patients condition? What is the range shown in the graph below ? An automobile travels 415 miles on 16 2/3 gallons of gasoline.a) How many miles per gallon does the car get on the trip? (Enter your answer as a simplified mixed number.)b) How many gallons would be required for the car to travel 498 miles? Put the correct number in each box 1/7 = 4/? = ?/56 with regard to morality, 18-year-old nasrin believes that the focus should be on abstract principles rather than on relationships and concern for others. therefore, she has a(n) perspective on morality. Brainliest plus 100pointsmake a horror story with the information you know(cannot be more than 25 sentences or less than 20:Information #1: Estaba caminando a la escuela con un compaero de clase cuando nos encontramos con una casa negra solitaria. Mi amigo y yo decidimos entrar porque pareca tentadora e inquietante. Las ventanas fueron demolidas y la entrada estaba parcialmente abierta. Entramos y ola desagradable, haba insectos por todas partes y el rea estaba completamente oscura. En la habitacin principal, haba una puerta de aspecto misterioso. Haba algo de niebla rodeando la entrada. Entramos en la habitacin con la entrada misteriosa y encontramos a una anciana que pareca estar intimidada. Se acerc a nosotros y nos entreg la llave de una maleta.Information #2: Alyssa: Ella era una estudiante en un high school. Ella siempre caminaba con su amiga. Era muy amigable. Y ella tena mucha curiosidad por los misterios.Avery: Ella era un poco tmida. Solo estaba cmoda con Alyssa. Ella poda ser tmida pero tambin poda ser valiente a veces. Y ella era inteligente en sus estudios. 17. An Uber ride costs a flat rate of $7 and you are charged $.65 per mile. Whatis the algebraic expression for this situation? How much would it cost for 15miles?* At equilibrium, a reaction vessel contains 4.50 atm of Br and 1.10 atm of NBr. According to the reaction: 2 NBr (g) N (g) + 3 Br (g) Kp = 4.8Determine the equilibrium partial pressure of N. MATH PLEASE HELP!!!Let f(x) be given by the (large) graph to the right. On a piece of paper, graph and label each. function listed below.y = f((1/2)x))y=2f(2x)y = f(2x)original function y=f(x) is attached what are characteristics of constantinian art Identify the bacteria that are responsible for turning nitrogen from the atmosphere into usable nitrogen for plants. Streptomyces, Yersinia pestis, Lactobacillus acidophilus, or Rhizobium. An object weighs 350 N. Find its mass.Use g = 10 m/s. Hello! Vectors u and v are shown in the graph. What is -3(u x v)? discordant streams - arun river, himalaya mountains, nepal. check and double-click the problem 17 placemark, and leave layers > gallery > earthquakes turned on. trace the arun river to its headwaters. what is the most likely interpretation for this river that cuts across the himalaya mountains? a. antecedent b. superposed Complete Complete the following tick -tac-toe board to find the three in a row there is only one correct way to make the tick-tac-toe, three in row! The code to unlock the puzzle will be the product of the three the following three puzzle Tic tac toe which expression references the data member suit within an object that is stored in position win (an integer variable) of the variable my deck, which is a one-dimensional array of objects? when palpating the carotid pulse of a responsive patient, you should: a. avoid compressing both carotid arteries simultaneously. b. avoid gentle pressure so that weak pulses can be detected. c. ensure that his or her head is in a hyperextended position. d. firmly compress the artery because the pulse is often weak.