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gayaneshka [121]
3 years ago
6

How many molecules of Helium are in 1.0 mole?

Chemistry
1 answer:
FinnZ [79.3K]3 years ago
7 0

Answer: 6158.46

Explanation:

1 mole of helium gas contains 6.02 x1023 helium atoms. 1 mole of water contains 6.02 x1023 water molecules.

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For each of the following choose the variable that will be more favorable in solution formation. A) Weak or Strong Solvent inter
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Based on factors affecting solution formation;

  • Strong solvent-solute intermolecular forces favors solution formation.
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<h3>What is a solution?</h3>

A solution is a substance formed when a substance known as solute dissolves in another substance know as solvent.

Factors that affect solution formation include:

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Increase in entropy favours solution formation

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Learn more about solutions at: brainly.com/question/6675586

6 0
2 years ago
If a gas sample has a pressure of 30.7 kPa at 0.00*C, by how much does the temperature have to decrease to lower the pressure to
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Answer:

                      252.68 K  or   -20.46 °C

Explanation:

                    According to Gay-Lussac's Law, "Pressure and Temperature at given volume are directly proportional to each other".

Mathematically,

                                              P₁ / T₁  =  P₂ / T₂   ---- (1)

Data Given:

                  P₁  =  30.7 kPa

                  T₁  =  0.00 °C  =  273.15 K

                  P₂  =  28.4 kPa

                  T₂  =  <u>???</u>

Solving equation for T₂,

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Putting values,

                  T₂  =  28.4 kPa × 273.15 K / 30.7 kPa

                  T₂  =  252.68 K  or   -20.46 °C

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