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3 years ago

Which substance would be least likely to dissolve in a polar solvent?

1 answer:

6 0

The substance that would be least likely to dissolve in a polar solvent IS A NON POLAR MOLECULE.
Examples of non polar molecules are oil and cholesterol. These molecules are non polar, that is, their electrons are distributed evenly throughout the element and thus their charges cancel out one another. Such compounds will not dissolve in polar solvent.

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6. What is the pressure of 0.60 moles of a gas if its volume is 10.0 liters at 35.0°C?

denis-greek [22]

Answer: The pressure inside the cylinder will be 1.5 atm. The pressure can be calculated using the Ideal Gas Equation which relates the pressure, volume, temperature, and amount of gas to each other.

Further Explanation

The Ideal Gas Equation is:

$PV = nRT$

where:

P - pressure (in atm)

V - volume (in L)

n - amount of gas (in moles)

R - universal gas constant $0.08206 \frac{L-atm}{mol-K}$

T - temperature (in K)

In the problem, we are given the values:

P = ?

V = 10.0 L (3 significant figures)

n = 0.60 moles ( 2 significant figures)

T = 35.0 degrees Celsius (3 significant figures)

We need to convert the temperature to Kelvin before we can use the Ideal Gas Equation. The formula to convert from degree Celsius to Kelvin is:

$Temperature \ in \ Kelvin = Temperature\ in \ Celsius \ + \ 273.15$

Therefore, for this problem,

$Temperature\ in \ K = 35.0 +273.15\\Temperature\ in \ K = 308.15$

Solving for P using the Ideal Gas Equation:

$P = \frac{nRT}{V} \\P = \frac{(0.60\ mol) \ (0.08206 \ \frac{L-atm}{mol - K}) \ (308.15\ K) \ }{10.0 \ L} \\P = 1.51\ atm$

The least number of significant figures is 2, therefore, the final answer must have only 2 significant figures.

Learn More

1. Learn more about Boyle's Law brainly.com/question/1437490

2. Learn more about Charles' Law brainly.com/question/1421697

3. Learn more about Avogadro's Law brainly.com/question/1964205

Keywords: Ideal Gas Law, Gas Pressure

7 0

4 years ago

Which of the following is qual to 0.5000 mol?

Leviafan [203]

Answer:

a i think :)

Explanation:

good luck!

4 0

4 years ago

How many hydrogen atoms are there in 7.30 moles of ethanol

saveliy_v [14]

There are 6 hydrogen atoms in every molecule of ethanol

6 0

4 years ago

Identify which of the following statements are true. Check all that apply. Check all that apply. Ionization energies are always

saw5 [17]

Explanation:

Ionization energies are always negative quantities – (False)

Energy required to remove an outermost electron from gaseous atom is known as ionization energy. As energy is always required in ionization, therefore, ionization energy is always a positive quantity.

The third ionization energy is the energy needed to ionize three electrons from a neutral atom. (Ture)

1st ionization energy is the energy required to knock out outermost electron from neutral gaseous atom.

2nd ionization energy is the energy required to knock out second electron from neutral gaseous atom.

3rd ionization energy is the energy required to knock out third electron from neutral gaseous atom.

Oxygen has a larger first ionization energy than fluorine. (False)

Ionization energy increases when we move from left to right in a period. Fluorine comes after oxygen in 2nd period of the periodic table, so as per the trend, ionization energy of the fluorine is larger than oxygen.

The second ionization energy of an atom is always greater than its first ionization energy. (True)

Second ionization energy is always greater than first because of increased nuclear attraction after removing one electron.

7 0

4 years ago

When an acid and a base react, a particular type of salt is formed. this is an example of what reaction?

GREYUIT [131]

Neutralization is the name of the reaction

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3 years ago