Solution A and B are BASIC
[tex]\begin{gathered} solution\text{ A: }[H_3O^+]=3.039\times10^{-8}M \\ solution\text{ B: }[OH^-]=1.038\times10^{-6}M \\ solution\text{ C: }[OH^-]=1.54\times10^{-11}M \end{gathered}[/tex]Explanations:Using the formula below to determine the concentration of the hydroxonium ion;
[tex]\begin{gathered} [H_3O^+][OH^-]=1\times10^{-14} \\ [H_3O^+]=\frac{1\times10^{-14}}{3.29\times10^{-7}} \\ [H_3O^+]=\frac{1}{3.29}\times10^{-14-(-7)} \\ [H_3O^+]=0.3039\times10^{^{-7}} \\ [H_3O^+]=3.039\times10^{-8}M \end{gathered}[/tex]Determine the pH
[tex]\begin{gathered} pH=-log[H_3O] \\ pH=-log(3.039\times10^{-8}) \\ pH=-(-7.5) \\ pH=7.5 \end{gathered}[/tex]This shows that the solution A is BASIC since the pH is greater than 7
For solution B
[tex]\begin{gathered} [OH^-]=\frac{1\times10^{-14}}{[H_3O^+]} \\ [OH^-]=\frac{1\times10^{-14}}{9.63\times10^{-9}} \\ [OH^-]=0.1038\times10^{-5}M \\ [OH^-]=1.038\times10^{-6}M \end{gathered}[/tex]Determine the pH
[tex]\begin{gathered} pH=-log[H_3O^+] \\ pH=-log(9.63\times10^{-9}) \\ pH=-(-8.02) \\ pH=8.02 \end{gathered}[/tex]This shows that the solution B is BASIC since the pH is greater than 7
For the solution C
[tex]\begin{gathered} [OH^-]=\frac{1\times10^{-14}}{[H_3O^+]} \\ [OH^-]=\frac{1\times10^{-14}}{6.49\times10^{-4}} \\ [OH^-]=0.1540\times10^{-10}M \\ [OH^-]=1.54\times10^{-11}M \end{gathered}[/tex]Determine the pH of the solution C
[tex]\begin{gathered} pH=-log[H_3O^+] \\ pH=-log(6.49\times10^{-4}) \\ pH=-(-3.19) \\ pH=3.19 \end{gathered}[/tex]Since the pH of the soution C is less than 7, hence the solution C is ACIDIC
Calculate the mass of NaCl in 450g of NaCl solution containing NaCl w/w%
Answer:
MM of Nacl is 58.5
1000=450
58.5=26.325g
When the equation, ___O2 + ___C 6H 14 →→ ___CO2 + ___H2O is balanced, the coefficient of O2 is:
Answer:
Explanations:
For a chemical reaction to be balanced, the total number of moles of elements at the reactant must be equal to the number of moles at the product.
Given the chemical reaction;
[tex]aO_2+bC_6H_{14}\rightarrow cCO_2+dH_2O[/tex]Equating the number of moles of elements on both sides:
For the oxygen element:
2a = 2c + d ................... 1
For the carbon element;
6b=c
For the Hydrogen element:
14b = 2d
7b = d .............................. 3
Assume a = 2;
Equation 1 becomes:
2(2) = 2c + d
4 = 2c + d ................,....4
From equation 2
b = c/6 .............................. 5
From equation 3:
b = d/7 ...................... 6
Equating 5 and 6
c/6 = d/7
7c = 6d
c = 6d/7 ........................... 7
Substitute equation 7 into 4 to have:
4 = 2c + d
4 = 2(6d/7) + d
4 = 12d/7 + d
4 = (12d+7d)/7
28 = 19d
d = 28/19
To get the value of b:
b = d/7
b = 28/19 * 1/7
b = 28/133
ist the following aqueous solutions in order of increasing melting point. (The lastthree are all assumed to dissociate completely into ions in water.)(a) 0.1 m sugar(b) 0.1 m NaCl(c) 0.08 m CaCl2(d) 0.04 m Na2SO4
Answer
Exlanation
Melting point is an intensive property — Intensive properties are properties which do not depend on the amount of matter that is present.
Therefore, the given solutions are NOT in order of increasing melting point.
The order of inereasing melting point ofthe slolutions is:
(a) 0.1 m sugar (sugar has a metlting point of 186 °C
(c) 0.08 m CaCl2
(b) 0.1 m NaCl
(d) 0.04 m Na2SO4
Which statement best describes the mass numbers of the atoms in the reaction?
OThere is one atom with a mass number of 1
O There are two atoms with mass numbers of 2.
OThere is one atom with a mass number of 2.
O There are two atoms with mass numbers of 1.
There are two atoms with mass numbers of 2 best describes the mass numbers of the atoms in the reaction
What is a Mass number ?The sum of protons and neutrons in an atomic nucleus is known as the mass number, often known as the atomic mass number or nucleon number. It roughly equates to the atom's atomic mass given in atomic mass units.
They are collectively referred to as nucleons since protons and neutrons are both present in the atomic nucleus. An atom of carbon, for instance, has 6 protons and 6 neutrons. Its mass number is therefore 12. All atoms of an element have the same number of protons, but their neutron counts can differ.Learn more about Mass number here:
https://brainly.com/question/28409714
#SPJ13
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
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
The equilibrium constant for the reaction 2 HF (g) ⇌ H₂ (g) + F₂ (g) is 0.270 at a particular temperature. What is the equilibrium constant for the equation ½ H₂ (g) + ½ F₂ (g) ⇌ HF (g)?
If the equilibrium constant for the reaction 2 HF (g) ⇄ H₂ (g) + F₂ (g) is 0.270 than equilibrium constant for the equation ¹/₂ H₂ (g) + ¹/₂ F₂ (g) ⇄ HF (g) is 1.924.
Initial equation is 2 HF (g) ⇄ H₂ (g) + F₂ (g)
Final equation is ¹/₂ H₂ (g) + ¹/₂ F₂ (g) ⇄ HF (g)
On reversing the equation of reaction, the equilibrium constant of the reversed reaction is inverse of the equilibrium constant of the forward reaction.
For reaction H₂ (g) + F₂ (g) ⇄ 2HF (g), equilibrium constant will be inverse of 0.270. Let the equilibrium constant of reaction H₂ (g) + F₂ (g) ⇄ 2HF (g) be K₁. Then, the Value of K₁ is given as
K₁ = 1 ÷ 0.270 = 3.7037
On changing the stoichiometric coefficient by a factor let's say x, then the equilibrium coefficient of the changed reaction is the equilibrium constant of the unchanged reaction raised to the power x.
According to the question, the value of x is ¹/₂. So, the equilibrium constant of reaction ¹/₂ H₂ (g) + ¹/₂ F₂ ⇄ HF (g), will root of K₁. Let the equilibrium constant of the reaction ¹/₂ H₂ (g) + ¹/₂ F₂ ⇄ HF (g) be K₂. Then, the value of K₂ can be given as
K₂ = √K₁
K₂ = √3.7037
K₂ = 1.924
Hence the value of the equilibrium constant for the final reaction ¹/₂ H₂ (g) + ¹/₂ F₂ ⇄ HF (g) is 1.924
Learn about what different factors does equilibrium constant depends on at:
https://brainly.com/question/15097297
#SPJ1
What is the mass (in grams) of 19.00 L of propane vapor (C₃H₈) at STP?
Considering the definition of STP conditions and molar mass, there are 37.3208 grams of 19.00 L of propane vapor (C₃H₈) at STP.
Definition of STP conditionsThe STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.
Definition of molar massThe molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.
Mass of propaneIn this case, you have 19.00 L of propane vapor (C₃H₈) at STP.
You can apply the following rule of three: if by definition of STP conditions a volume of 22.4 L is occupied by 1 mole of propane, a volume of 19 L is occupied by how many moles of propane?
moles of propane= (19 L× 1 mole)÷ 22.4 L
moles of propane= 0.8482 moles
Considering that the molar mass of propane is 44 g/mole, you can apply the following rule of three: If 1 mole of propane contains 44 grams, 0.8482 moles contains how much mass of propane?
mass of propane= (0.8482 moles× 44 grams)÷ 1 mole
mass of propane= 37.3208 grams
Finally there are 37.3208 grams of propane in 19 L.
Learn more about STP conditions:
brainly.com/question/3773297
brainly.com/question/9901446
brainly.com/question/12695086
brainly.com/question/15507610
brainly.com/question/14260169
brainly.com/question/14831640
#SPJ1
how will you relate the melted ice cream because of the heat of the sun
to magmatism
What is the z value for calcium atom with 35neutrons?
The atomic number of calcium i.e. Z value is 20 with 35 neutrons and 20 electrons.
What is atomic number?Atomic number is defined as a chemical element's nuclear charge number (symbol Z) is the charge number of an atomic nucleus.
It can also be defined as the number of protons or positive charges in the nucleus of an atom of a specific element, and thus the number of electrons generally surrounding the nucleus.
The number of protons is equal to number of number of electrons.
Thus. the atomic number of calcium i.e. Z value is 20 with 35 neutrons and 20 electrons.
To learn more about atomic number, refer to the link below:
https://brainly.com/question/8834373
#SPJ1
A map showing the acidity of rain across the United States is provided. The pattern of acid rain is best explained by which of the following observations?
The patterns of acid rain is best explained on the basis of it's ph observations.
Rain or any other form of precipitation that is unusually acidic, is referred to as acid rain (low pH). The Northeastern United States contains the regions with the highest levels of acidity (lowest pH values). The Northeast's concentration of industrial and power facilities, numerous cities, and dense population are to blame for this trend of high acidity.
Infrastructure, marine life, and plants can all be harmed by acid rain. Sulfur dioxide and nitrogen oxide emissions cause acid rain by reacting with the water molecules in the atmosphere to create acids. It has been noted that acid rain also has negative effects on forests, freshwaters, and soils. It also kills insect and aquatic life-forms, damages structures, and has an effect on human health.
To know more about acid rain, refer to the following link:
https://brainly.com/question/22143130
#SPJ1
A new element (E) has been discovered to have two naturally occurring isotopes, E216 and E
219. If the average isotopic mass of E is 217.00 grams/mol, what is the percent abundance of each isotope?
I need help please?
Let the percent abundance of E216 be x. Then, the percent abundance of E219 is 100-x. It follows that:
[tex]216x+219(100-x)=2170.00\\\\216x+21900-219x=21700.00\\\\-3x+21900=21700.00\\\\-3x=-200\\\\x=\frac{200}{3} \approx 66.6\%[/tex]
So, the percent abundance of E216 is 66.6%, and the percent abundance of E219 is 33.3%.
Isotopes exists atoms that stood part of the exact element and have the same atomic number Z but a different mass number A. The percent abundance of E216 exists 66.6 %, and the percent abundance of E219 exists 33.3 %
What is meant by isotope?Isotopes are two or more different atom types that share the same atomic number and place in the periodic table but contain various quantities of neutrons in their nuclei, resulting in various nucleon numbers.
A chemical element's isotope is any of two or more species of atoms that share the same atomic number, position in the periodic table, and virtually identical chemical behavior, but differ in atomic mass and physical characteristics. There are one or more isotopes for each chemical element.
Isotopes are atoms that are part of the same element and have the same atomic number Z but a different mass number A. For instance, three isotopes of the element carbon, with respective masses of 12, 13, and 14, are carbon-12, carbon-13, and carbon-14.
Let the percent abundance of E216 be x. Then, the percent abundance of E219 is 100-x. It follows that:
216x + 219 (100 - x) = 2170.00
simplifying the above equation, we get
216x + 21900 - 219x = 21700.00
-3x + 21900 = 21700.00
-3x = -200
x = 200/3 ≈ 66.6 %
Therefore, the percent abundance of E216 exists 66.6 %, and the percent abundance of E219 exists 33.3 %.
To learn more about Isotopes refer to:
https://brainly.com/question/364529
#SPJ13
Explain the rationale for the potentiometric method.
The rationale of the potentiometric method is that it could be used to obtain the concentration of a particular analyte.
What is the potentiometric method?There are so many ways by which the concentration of a substance could be determined. We know that the concertation has to do with the amount of substance in the solution.
In the potentiometric titration, has to do with the sort of titration in which the end point or the equivalence point could be electronically determined without the use of an indicator. It could be used to obtain the concentration of an acid.
The potentiometric method depends on the fact that one specie is oxidized and the other is reduced and this creates a kind of a redox system. The acid may be added to the base and the changes in the potential of the system is measured. The potential is the plotted against the concentration.
Learn more about potentiometry:https://brainly.com/question/17404699
#SPJ1
you reach into the oven to take out the cookies but forgot to wear oven mittens. explain the transformation of thermal energy
When you reach into the oven to take out the cookies, the thermal energy from your hand transfers to the cookies. The cookies become hot while your hand becomes cooler.
What is thermal energy?
Thermal energy is the energy contained within a system that controls its temperature. The flow of thermal energy is defined as heat. Thermodynamics is a branch of physics that deals with how heat is transferred between different systems and how work is done in the process (see the first law of thermodynamics).
We are usually interested in the role of thermal energy in ensuring energy conservation in the context of mechanics problems. Almost every transfer of energy in real-world physical systems occurs with less than 100% efficiency and results in some thermal energy. Typically, this energy takes the form of low-level thermal energy.
To learn more about Thermal energy the given link:
brainly.com/question/1633329
#SPJ10
I need asap answers for this question. I’m stuck.
If 6.95 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 ——- CO2 + H2OHow many moles of O2 is required? Answer in units of mol.
Answer
24.325 mol
Explanation
The unbalanced equation is:
C₂H₆ + O₂ → CO₂ + H₂O
The balanced equation will be:
2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O
Given mole of ethane = 6.95 mol
From the balanced equation:
2 mol of C₂H₆ is required by 7 mol of O₂
Therefore, 6.95 mol of C₂H₆wills requir:
[tex]\frac{6.95\text{ mol }C_2H_6\times7\text{ mol }O_{2}}{2\text{ mol }C_2H_6}=24.325\text{ mol of }O_{2}[/tex]Hence, 24.325 mol of O2 is required.
a gas is contained in a thick walled ballon when the pressure changes from 417mm HG 576mm HG the volume changes from to 4.78L and the temputure changes from 4.78 and the tempurture 497 50 386
The volume of the gas will be 8.501 L
What is combined gas law?
The combined gas law combines the three gas laws: Boyle's Law, Charles' Law, and Gay-Lussac's Law. It states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant.
i.e.
P1V1/T1 = PV2/T2
Where P1 = Initial pressure
V1 = Initial volume
T1 = initial temperature
P2 = Final pressure
V2 = Final volume
T2 = Final temperature
In the question, we know
P1V1/T1 = PV2/T2
417 × V1 = 576 × 4.78
497 386
417 × 386 × V1 = 576 × 4.78 × 497
V1 = 576 × 4.78 × 497
417 × 386
V1 = 8.501 L
To know more about combined gas law visit the link:
https://brainly.com/question/13154969?referrer=searchResults
#SPJ1
The complete question is :
When the pressure changes from 417 mm Hg to 576 mm Hg, the volume changes from _______L to 4.78 L and the temperature changes from 497 K to 386 K.
Convert 1.54 x 10^25 molecules of water into moles.
The moles of water = 0.25×[tex]10^{2}[/tex]
Given Molecules= 1.54×[tex]10^{25}[/tex] molecules
Avogadro number = 6.02×[tex]10^{23}[/tex] molecules
Number of Moles= Number of Molecules ÷ Avogadro Number
Number of moles = 1.54×[tex]10^{25}[/tex]÷6.02×[tex]10^{23}[/tex]
= 0.25×[tex]10^{2}[/tex] moles
Therefore number of moles are 0.25×[tex]10^{2}[/tex] moles
For further information regarding the topic Moles and Molecules refer to the following link
https://brainly.com/question/19964502
Oxidation state for FeAl2(SO4)4*22(H2O)
The oxidation state of SO4 in FeAl2(SO4)4 * 22 H2O is -2 .
What is oxidation state and how the oxidation state of S04 comes out to be so?Oxidation state of an element is the collection of all charges an element possess in a compound.Here the oxidation state of Fe would be taken as +2, oxidation state of Al would be taken 3, and H2O's oxidation state would be 0.Putting the values , like 2+3x2+4x = 0 , then x would be calculated out to be -2.Hence the oxidation state of SO4 in FeAl2(SO4)4*22H2O would be -2 as followed by all the oxidation states of the element in the compound when put the values.To know more about oxidation state visit:
https://brainly.com/question/11313964
#SPJ10
What volume of 0.130 M HClO4 solution is needed to neutralize 44.00 mL of 8.50×10−2 M NaOH ?
It wants the answer in mL.
The volume of 0.130M HClO₄ required to react with 44ml of 8.5 x 10⁻²M NaOH to neutralize it is 28.76ml.
Let us first write the reaction of HClO₄ and NaOH,
HClO₄ + NaOH → NaClO₄ + H₂O
According to the reaction,
one moles of HClO₄ reacts with one mole of NaOH completely to form NaClO₄ and H₂O.
As we know,
Molarity = number of moles of solute/volume of solution
Moles = Molarity x Volume
So, we can write,
Moles of HClO₄ = Moles of NaOH
V x 0.130 = 44 x 8.5 x 10⁻²
Here,
V is the volume of HClO₄ (in ml),
V = 44 x 8.5 x 10⁻²/0.130
V = 28.76ml
Amount of HClO₄ required is 28.76ml.
To know more about molarity, visit,
https://brainly.com/question/14469428
#SPJ9
9. List three Alkali metals and give two physical and two chemical similarities shown in this Group.
NAME
SYMBOL
PHYSICAL SIMILARITY
CHEMICAL SIMILARITY
1)
2)
1)
1)
Here are 3 alkali metals with physical and chemical similarity.
What is alkali metals?
alkali metals are come from the fact that when these metals or their oxides dissolved in water.a basic solution results.
Three alkali metals -
1- hydrogen(H)
2-lithium(Li)
3-potassium(K)
Physical and chemical similarity of hydrogen -
-it is colourless and tasteless in nature.
-it is a combustible gas but not a supporter of combustion.
Physical and chemical similarity of lithium -
-it have a melting point of 180.54
-it is the lightest of all metals,with a density approximately half that of water.
Physical and chemical similarity of pottasium -
- this metal is soft and white with a silver lustre.
-it imparts a lavender colour to a flame, and it's vapour is green.
To know more about alkali metals click-
https://brainly.com/question/19109836
#SPJ9
Pls I need the answer quick
Answer:
on image
Explanation:
top numbers are mass numbers; bottom numbers are proton numbers
A sample of neon gas occuples a volume of 7.5L at 35 °C. If the temperature is increased to 45°C, what is the new volume? K=273+•C
Assuming the pressure remains same, we can use Charles' Law here
i.e.
[tex]\frac{V1}{T1}=\text{ }\frac{V2}{T2}[/tex]Here, V1 = 7.5 l, T2 = 35 +273= 308 K
T2= 45+273 = 318 K, we need to find V2
[tex]\frac{7.5}{308}=\text{ }\frac{V2}{318}[/tex][tex]So,\text{ V2 = 7.74 L}[/tex]
2,2-dimethylbutane condensed structural formula
ANSWER
[tex]\text{ The condensed structural formula is CH}_3C(CH_3)_2CH_2CH_3[/tex]EXPLANATION
A weather balloon with a volume of 171 L is launched at 20.0°C at sea level, where the atmospheric pressure is 1.00 atm. The balloon
rises to an altitude of 2.00 x 104 m, where atmospheric pressure is 61.0 mmHg and the temperature is 210.0 K. What is the volume of
the balloon at 2.00 × 104 m?
Volume of the balloon at 2.00 × 10⁴ m is 1.52x10³ L
Volume is the three dimensional qualities that is used to measure capacity of solid shape and atmospheric pressure is the air around you has weight and it weighs down everything it touches is called atmospheric pressure
Here given data is
Pi = 1.0 atmosphere = absolute atmospheric pressure
P f = 61.0 mm Hg = atmospheric pressure
= 61.0/760 atmosphere
= 0.0802 atmosphere
Vi = 171 L
T i = 20.0°C = 20+273 = 293 K
T f = 210 K
We have to find volume of the balloon at 2.00 ×10⁴ m =?
Then the formula is
Pi × Vi/T i = P f × V f/T f
1 atm×171 L/293 K = 0.0802× V f/210K
V f = 1.52x10³ L
Know more about balloon
https://brainly.com/question/28853762
#SPJ1
Determine the mass of water formed when 12.5 L NH 3 (at 298 K and 1.50 atm) is reacted with 18.9 L of O 2 (at 323 K and 1.1 atm).
4 NH 3( g) + 5 O 2( g) → 4 NO( g) + 6 H 2O( g)
16.93g of water formed when 12.5 LNH3 (at 298 K and 1.50 atm) is reacted with 18.9 L of O2 (at 323 K and 1.1 atm).
What is water in chemistry?The primary component of Earth's hydrosphere and the fluids in all known living things is water (H2O), an inorganic chemical that is transparent, tasteless, odorless, and almost colorless (in which it acts as a solvent).
Despite not providing food, energy, or organic micronutrients, water is necessary for all known forms of life. Each of its molecules has one oxygen and two hydrogen atoms, which are connected by covalent bonds, as indicated by the chemical formula H2O. At a 104.45° angle, the hydrogen atoms are joined to the oxygen atom.
We will use the idea gas equation to calculate the moles of NH3 and O2
that is Pv= n RT
where; P= pressure,
V= volume,
n = number of moles,
R=gas constant = 0.0821 l .atm/ mol.K
can also be written as
n = PV /RT
The moles of NH3
n= (1.50 atm x 12.5 L) /( 0.0821 L. atm /mol.k x 298 K) = 0.766 moles
The moles of O2
=(1.1 atm x 18.9 L) / ( 0.0821 L. atm/ mol.k x 323 K) = 0.784 moles
Now we will write the reaction between NH3 and O2
4 NH3 + 5 O2 → 4 No +6H2O
from equation above 0.766 moles of NH3 reacted to produce
0.766 x 6/4 =1.149 moles of H2O
0.784 moles of O2 reacted to produce
0.784 x 6/5 = 0.9408 moles of H20
As we can see O2 is totally consumed, O2 is the limiting reagent and therefore the moles of H2O produced = 0.9408 moles
Mass of H2O = moles x molar mass
Molar mass of H2O = (1 x2)+16= 18 g/mol
mass = 18 g/mol x 0.9408 moles
= 16.93 grams
Thusm 16.93g of water formed when 12.5 L NH 3 (at 298 K and 1.50 atm) is reacted with 18.9 L of O 2 (at 323 K and 1.1 atm).
Learn more about water
https://brainly.com/question/1313076
#SPJ9
Identify each reactant and product in this reaction as a Brønsted acid or base.H,Y +H,Z =H,Y+HZ-acidbaseacidAnswer Bankbase
According to the definition of acids, for Bronsted-Lowry, an acid is any species that can donate a proton, which is H+, to another molecule, and a base is any species that is capable of accepting a proton. Therefore, according to this definition, we have the following reaction:
H2Y- + H2Z- <---> H3Y + HZ^2-
In this reaction, we can see that H2Z donated a H+ to H2Y, therefore H2Z is the acid on the reactants side, and H2Y will be the base.
On the products side, since we have a reversible reaction, H3Y will donate a H to HZ^-2, therefore H3Y will be the acid, and HZ^-2 will be the base
Which type of reaction has only one product?
Combination
Decomposition
Single Replacement
O Double Replacement
O Combustion
3
Clear selecti
The reaction type which gives one product is a combination reaction.
What is a combination reaction?
Combination reactions are those in which two or more chemical entities join together to form a single product.
Generally, all the other types mentioned in the question can give single products under different circumstances but a combination reaction always gives a single product as shown in the above reaction.
4Fe + 3O2 = 2Fe2O3
Hence, the answer is a combination reaction.
To learn more about the different reactions Check the given link
https://brainly.com/question/11231920
#SPJ9
Hi could you please I just want to be sure on how to do these diagrams
Explanation:
Formaldeyde
Lewis Structure:
Structural diagram:
3D diagram.
Determine the molecular/formula masses of the following compound. Round the masses of the element from the periodic table to the nearest tenth of a gram Th(SO4)2
The question requires us to determine the molecular mass of the compound thorium sulfate (Th(SO4)2), considering the atomic masses to the tenth of a gram.
The atomic masses of the elements present in the molecule given are:
Th: 232.0 u
S: 32.1 u
O: 16.0 u
To obtain the molecular mass of the compound, we must consider the number of atoms of each element: there are 8 oxygen (O) atoms, 2 sulfur (S) atoms and 1 thorium (Th) atom, therefore we calculate the mass as:
molecular mass Th(SO4)2 = (1 * 232.0) + (2 * 32.1) + (8 * 16.0) = 424.2 g/mol
Therefore, the molecular mass of Th(SO4)2 is 424.2 g/mol.
Calculate the number of molecules of sugar present in 1 mL of 10% sugar solution having a density of 1.2 g
Molar mass - Number of Sugar molecules in 1mL of 10% sugar solution is 2.11 × 10²⁰
What is molar mass ?
Mass per mole is a definition of molar mass. In other terms, molar mass is the total mass of all the atoms in a substance that makes up a mole. It is measured in gram-per-mole units.
For elements or molecules, molar mass is displayed. The molar mass is simply the element's mass represented in atomic mass units in the case of single elements or individual atoms. To put it another way, an atom's atomic mass and molar mass are exactly equal. Molar mass can be used to determine a particle's identification because it is equivalent to atomic mass for individual atoms.
Molar mass of sugar (C₁₂H₂₂O₁₁) = (12×12 + 1×22 + 16×11) g mol⁻¹ = 342 g mol⁻¹
Mass of 1 ml of the solution = (1 ml) × (1.20 g ml⁻¹) = 1.20 g
Mass of sugar in 1 ml of the solution = (1.20 g) × 10% = 0.120 g
Moles of sugar in 1 ml of the solution = (0.120 g) / (342 g mol⁻¹) = 3.509 × 10⁻⁴ mol
Avogadro constant = 6.02 × 10²³ mol⁻¹
No. of sugar molecules = (3.509 × 10⁻⁴ mol) × (6.02 × 10²³ mol⁻¹) = 2.11 × 10²⁰
No. of Sugar molecules in 1mL of 10% sugar solution is 2.11 × 10²⁰
To learn more about Molar Mass from given link
https://brainly.com/question/837939
#SPJ10