Calculate the volume of liquid in the tank sketched below. Give your answer in liters, and round to the nearest 0.1 L.

Answer:

10

Explanation:

Deca or deka is a decimal unit prefix in the metric system denoting a factor of ten. For example, DECAGON is a 10-sided polygon (10-gon).

Answer:

A gas at very low volumes, when gas particles are very close together

A gas at very low temperatures, when gas particles have very little kinetic energy

A gas with highly polar molecules that have very strong inter-molecular forces

Explanation:

The Kinetic Molecular Theory:

RM / NV / NF / EC / ET

Although none of the assumptions provided in the molecular theory of gases are strictly correct, they are fair enough for modeling some systems. It is an idealized approach of real systems. The fundamental presumptions are nearly identical to those of an ideal gas.

The most logical of the hypotheses is that of elastic collisions. Since gas molecules are treated as perfectly hard spheres in Newton's equations and elastic collisions, there is no energy lost in compressing the gas molecules during a collision.

For bulk, light gases at moderate temperatures and low to moderate pressures, it is acceptable to assume that there is an attractive force between the gas and the container wall. Since the walls of the containers only account for a minor portion of collisions in macroscopic quantities, they can typically be disregarded. Only until the gas's total density exceeds the kinetic energy do forces between its particles start to become significant. For light gases like He and straightforward diatomic gases, the kinetic energy of the gas molecules far outweighs the intramolecular interactions at normal temperatures.

But in a complete way of the KM theory being described:

The microscopic characteristics of atoms (or molecules) and their interactions, which result in observable macroscopic qualities, are described by the kinetic molecular theory of matter (such as pressure, volume, temperature). The idea may be used to explain why matter exists in distinct phases (solid, liquid, and gas), as well as how matter can transform between these phases.

The three states of matter are: As we transition from the solid to the gaseous phase, you'll notice that the distance between atoms or molecules widens.

According to the kinetic molecular theory of matter,

According to the Kinetic Molecular Theory, gas particles collide in an elastic manner and are always in motion. Only absolute temperature directly affects a group of gas particle's average kinetic energy.

Part I of How the Kinetic-Molecular Theory Explains Gas Behavior.

If the volume is kept constant, the faster gas molecules collide with the container walls more frequently and more violently, raising the pressure according to Charles' law.

Answer:

See below

Explanation:

Gas at LOW PRESSURE or high temperature with little or no intermolecular forces would be closest to ideal gas behavour.

Answer:

A person spends Rs. 10,000 per second.

In one year, he will spend = Rs. (10,000 x 3600 x 24×365) = Rs. 3.1536 x 10^11

1 mole rupees = Rs. 6.022 x 10^23

So it will take approximately 1.91 x 1012 years to spend 1 mole rupees.

Explanation:

ヾ(＾-＾)ノ

If the flask already has water, your measure is going to be higher than expected and MW is going to be higher too.

At first sight, we need to assume 1 atm as atmospheric pressure, probably forgot to write down this value in the Lab. By doing this, we got all values to calculate the MW.

So, for trial 1:

MW = [0.36 g x (0.082 atm x L / K x mol) x 301 K] / (1 atm x 0.125 L) = 71.08 g/mol

Trial 2:

MW = [0.38 g x (0.082 atm x L / K x mol) x 301 K] / (1 atm x 0.125 L) = 75.53 g/mol

Average MW = 73.31 g/mol

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C₂H₆O is referred to the chemical formula corresponds to this structural formula and is denoted as option D.

This contains information about the chemical proportion of atoms present in a molecule.

In this scenario, there are two carbon atoms, six hydrogen atoms and one oxygen atom which can be written as C₂H₆O. This is therefore the most appropriate choice in this scenario.

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Answer: D.) C6H14

Explanation: i hope this helps (this is for another question you might have tho) :)

-log(1.2x10^-3) = 2.92 = pH

14 - 2.92 = 11.08 = pOH

socratic

studycom

Answer:

cooking an egg

Explanation:

Hope it works

The mass of CoCl₂ is 6.515 g.

Given,

Molarity of the solute (CoCl₂) = 0.674 M

Volume of solution = 0.0750 L

Molecular weight of solute (CoCl₂) = 128.9 g/mol

Molarity formula is used to solve this question.

Molarity is defined as the number of moles of solute per liter of solution.

                     [tex]Molarity = \frac{number of moles }{volume (in L)}[/tex]             .......(i)

We know that,

            [tex]number of moles = \frac{weight of given solute }{molecular mass if the solute}[/tex]             ........(ii)

Put the above values in equation (i)

                       [tex]0.674 = \frac{number of moles}{0.0750}[/tex]

                   [tex]number of moles = 0.674 (0.0750)[/tex]

                   [tex]number of moles = 0.05055[/tex]

Put the number of moles in equation (ii)

                       [tex]0.05055 = \frac{weight of given solute}{128.9}[/tex]

                [tex]weight of given solute = 0.05055 (128.9)[/tex]

                [tex]weight of given solute = 6.515 g[/tex]

Therefore, 6.515 g of CoCl₂ is needed.

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The bond dissociation energy of the Cl - Cl bond is -958 kJ mol^-1.

Given that;

H-H bond energy =  435 kJ mol^-1

H-Cl bond energy = 431 kJ mol^-1

ΔHfO of HCL(g) = -92kJ mol^-1

Bond dissociation enthalpy of the Cl-Cl bond = x

-92 = 435  +  431 + x

x = -92 - (435  +  431)

x = -958 kJ mol^-1

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Answer:

Aluminium metal reacts vigorously with all the halogens to form aluminium halides. So it reacts with chlorine, bromine, and iodine.

Answer:

1800 pascal

Explanation:

p1v1 = p2v2

p1v1/v2 = p2

90 * 2000 / 100 = p2 = 1800 pascal  

Answer:

1.2 V

Explanation:

10 g helium = 2.5 moles He

10 g Neon = ~ .5 mole neon

2.5 is to V as   (2.5 + .5) is to x

2.5 / V = 3/x

2.5 x = 3 V

x = 3/2.5 V = 1 1/5 V

Avogadro's Law (P,T constant)

[tex]\tt \dfrac{V_1}{n_1}=\dfrac{V_2}{n_2}[/tex]

n = mol

V = volume

AM He = 4 u, mol = 10 : 4 = 2.5

AM Ne = 20 u, mol = 10 : 20 = 0.5

[tex]\tt \dfrac{V}{2.5}=\dfrac{V_2}{2.5+0.5}\\\\V_2=\boxed{\bold{1.2V}}[/tex]

The concentration of sulfate ion would be required for Ca⁺ to begin to precipitate out as calcium sulfate is 7.10 * 10⁻⁴ M.

b) The concentration of the Ba²⁺ ion would be 9.929 * 10⁻² M

The precipitation of calcium sulfate occurs when the ionic product, Kip is greater than or equal to the solubility product, Ksp of calcium sulfate.

a) The equation of the dissociation of CaSO₄ is given below:

CaSO₄ ⇄ Ca²⁺ + SO₄²⁻

Ksp = [Ca²⁺] * [SO₄²⁻] = 7.10 * 10⁻⁵

Kip = [Ca²⁺] * [SO₄²⁻]

[SO₄²⁻] = Kip/[Ca²⁺]

[Ca²⁺] = 0.100 M

For precipitation to occur;

Kip = Ksp = 7.10 * 10⁻⁵

[SO₄²⁻] = 7.10 * 10⁻⁵/0.100

[SO₄²⁻] = 7.10 * 10⁻⁴ M

Therefore, the concentration of sulfate ion would be required for Ca⁺ to begin to precipitate out as calcium sulfate is 7.10 * 10⁻⁴ M.

b) The concentration of the Ba²⁺ ion would be;

0.100 M - 7.10 * 10⁻⁴ M = 9.929 * 10⁻² M

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What is Solidification?

The process by which liquid metals turn into tiny solid particles at the phase boundary temperature is known as solidification or freezing.

How does solidification occur?

Solidification occurs when a liquid's temperature is reduced below its freezing point. Although the freezing point and melting point of the majority of materials are the same temperatures, this is not always the case and the words freezing point and melting point are not synonymous.

When a liquid turns into a solid, the process is always exothermic, which means heat is released.

Based on casting technology, solidification is a key component of several other processes, such as crystal growth, welding, surface alloying, the manufacturing of ingots, and the purification and refinement of raw materials. It is a crucial step in the technology of metals, as well as ceramics and polymers.

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190 milliliters is the volume of a 0.92M nickel(II) chloride solution that contains 175 mmol of nickel(II) chloride (NiCI₂).

Molarity (M) is defined as the number of moles of solute dissolved in 1L of solution. Molarity is also known as Molar Concentration. The S.I unit of Molarity is molar (M) or mol/L.

Molarity = [tex]\frac{\text{Number of moles}}{\text{Volume of solution (in L)}}[/tex]

Moles of nickel(II) chloride = 175 mmol

Molarity of the nickel(II) chloride = 0.92 M

Convert mmol into mol

1 milimol = 0.001 mol

175 mmol = 0.175 mol

Now put the value in above formula to find the volume of solution

Molarity = [tex]\frac{\text{Number of moles}}{\text{Volume of solution (in L)}}[/tex]

[tex]0.92\ M = \frac{0.175\ mol}{\text{Volume of solution}}[/tex]

Volume of solution = [tex]\frac{0.175\ mol}{0.92\ M}[/tex]

Volume of solution = 0.1902 L

Convert L into mL

1 L = 1000 mL

0.1902 L = 0.1902 × 1000 mL

              =  190.2 mL

              ≈ 190 mL

Thus from the above conclusion we can say that 190 milliliters is the volume of a 0.92M nickel(II) chloride solution that contains 175 mmol of nickel(II) chloride (NiCI₂).

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Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: Calculate the volume in milliliters of a 0.92M nickel(II) chloride solution that contains 175 mmol of nickel(II) chloride (NiCI₂). Round your answer to significant digits.

The explanation of the how the various concentrations of acid will affect the amount of limestone has been given below.

Effects of acid rain on limestone:-

Thus we discussed the affects of acid rain on limestones above.

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The volume of HCl required is 23.89 mL

Calculation of volume:

The reaction:

[tex]HCl + NaOH \rightarrow NaCl + H_2O[/tex]

As HCl and NaOH react in 1 : 1 ratio.

Volume of NaOH= 718 mL

Concentration= 0.183M

Volume of HCl= ?

Concentration= 5.50M

Using the dilution formula:

[tex]M_1\times V_1(NaOH)= M_2\times V_2(HCl)[/tex]

[tex]0.183\times 718= 5.50 \times V_2\\V_2=\frac{131.394}{5.50} \\V_2 = 23.89 \,mL[/tex]

Therefore,

Volume of HCl required will be 23.89 mL.

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Answer:

101325 pascal

Explanation:

i dont cap

Answer:

See below

Explanation:

1 atmosphere = 101 325 Pascals = 760 mm Hg = 14.6959 psi

Answer:

2 million years

Explanation:

500/2000 = 1/4, meaning the sample decayed to 1/4 of its original amount. From this, we can conclude that 2 half lives have passed.

In the problem, we are given one half life is 1 million years. Multiplying this by 2, we get that 2 half lives is 2 million years.

The correct option is:

The latent heat of vaporization of water is given by option D. 22,590J

Latent heat of vaporization:

Latent heat of vaporization is energy required to change 1 kg of liquid to gas at atmospheric pressure at its boiling point.

Also, Latent heat is the energy released or absorbed during a phase change.

Energy released during phase change is Exothermic process.

Whereas energy absorbed during phase change is Endothermic process.

Q=mL

Q= Latent heat

m= mass= 10 g

L= Latent heat of vaporization= 2,259 J/g

Putting the values in the above equation:

Q=10*2259

Q=22590 L

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Answer:

5.40 moles ( to 3 signif digits )

Explanation:

ONE mole is Avagadro's Number   6.022 x 10^23  atoms/mole

3.25 x 10^24 atoms / (6.022 x10^23 atoms/mole ) = 5.396 moles ~ 5.40 moles

Answer:

a. All elements are composed of atoms.

Explanation:

dalton's atomic theory says that Compounds are composed of atoms of more than 1 element. The relative number of atoms of each element in a given compound is always the same. Chemical reactions only involve the rearrangement of atoms. Atoms are not created or destroyed during chemical reactions.

The collision theory explains this outcome since when the reaction is complete reactant particles can not interact and therefore the reaction does not occur.

The collision theory is a well sustained theory used in chemistry that states reactions are caused by the collision of particles that form their molecules.

This theory (collision theory) may result very useful to explain the rate of change in a given chemical reaction.

In conclusion, the collision theory explains this outcome since when the reaction is complete reactant particles can not interact and therefore the reaction does not occur.

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Percentage by mass of water in CuSO4.5H20 is 36.07% .

In this problem we have - copper(II) sulfate pentahydrate and it's molecular formula is (CuSO₄.5H₂O) .

There are 5 molecules of water are present.

Now we calculate it's molar mass-

We know that-

molar mass of Cu = 63.5u

Molar mass of SO₄ = 96 u

Molar mass of H₂O = 18 u

Now, molar mass of (CuSO₄.5H₂O) = 63.5 + 96 + 5 × 18

Now, molar mass of (CuSO₄.5H₂O) = 249.5u

And mass of water in CuSO₄.5H₂O = 90 u

now mass percentage of water = mass of water ÷ Total mass ×100

now mass percentage of water = 90 ÷ 249.5 × 100

now mass percentage of water =  36.07 %

So we find out mass percent by dividing given mass with total mass and then multiplying it with hundred and it came out to be 36.07 % .

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Answer:

36.1

Explanation:

The molecular formula is C9H24O6

Given the Mass of C = 47.37g ,Mass of H = 10.59g and Mass of O = 42.04g

The total mass of these elements is 100g, taking a proportion of their molar masses.

C = 47.37/12= 3.95

H = 10.59/1 = 10.59

O = 42.04/16= 2.63.

Dividing with the smallest proportion which is 2.63

C=3.95/2.63 = 1.5

H =10.59/2.63 =4

O = 2.63/2.63= 1

Multiplying by 2 to get a whole number.

C = 1.5x2 = 3

H= 4x2 = 8

O = 1x2= 2

The empirical formula is C3H6O2

(Empirical formula)n= molecular mass

(C3H8O2)n =228.276

(12x3 +8+16x2)n= 228.276

76n = 228.276

n = 228.276/76

n = 3

Molecular formula = (Empirical formula)n

= (C3H8O2)3 = C9H24O6

The molecular formula is C9H24O6

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Antiseptics is a chemical germicides that has been formulated for use on the skin and is registered and regulated by the food and drug administration.

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The formula of the compound is [tex]$\mathrm{Cr}_{2} \mathrm{~S}_{3} \mathrm{O}_{12}$[/tex]

Salmon colored powder = 2.65 g

Chromium = 0.70 g

Sulfur = 0.65 g

Oxygen = 1.30 g

Molar mass = 392.2

Molar mass = gram / moles

Molar mass of chromium

= 0.70 / 0.0135

= 52

Molar mass of salmon

= 0.65 / 0.0203

= 32.06

Molar mass of oxygen

= 1.30 / 0.0813

= 16

Molecular formula = 392.2 / (Cr + 3 S + 12 O)

                              = 392.2 / (52.00 + (3 x 32.06 + 12 x 16.00) ≈ 1

So, The formula of the compound is [tex]$\mathrm{Cr}_{2} \mathrm{~S}_{3} \mathrm{O}_{12}$[/tex]

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10.5 milliliters of 3.5 M zinc hydroxide react completely with 15.0 milliliters of 4.9 M nitric acid.

It is a unit of concentration equivalent to moles of solute per liter of solution.

Zn(OH)₂ + 2 HNO₃ ⇒ Zn(NO₃)₂ + 2 H₂O

10.5 mL of 3.5 M Zn(OH)₂ react.

0.0105 L × 3.5 mol/L = 0.037 mol

The molar ratio of Zn(OH)₂ to HNO₃ is 1:2.

0.037 mol Zn(OH)₂ × 2 mol HNO₃/1 mol Zn(OH)₂ = 0.074 mol HNO₃

[HNO₃] = 0.074 mol / 0.0150 L = 4.9 M

10.5 milliliters of 3.5 M zinc hydroxide react completely with 15.0 milliliters of 4.9 M nitric acid.

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∆H of a reaction is positive

Answer:

5.01 x 10^-12

Explanation:

Formula [H+]=10^-ph 》》 10^-11.2

-Hope this helps!!