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A 8.5-liter sample of a gas has 1.2 mole of the gas. if 0.65 mole of the gas is added, what is the final volume of the gas? temperature and pressure remain constant. 13 liters 14 liters 18 liters 21 liters

Sagot :

13 liters is the correct answer

13 liters is the final volume of the gas when the temperature and pressure remain constant.

v1/n1 = v2/n2

where,

v1 = initial volume = 8.5 liter

n1= initial mole of gas = 1.2 mole

n2= final mole of gas = 1.2+0.65= 1.85 mole

v2= final volume = ?

8.5 L/1.2 mol = v2/1.85 mol

7 L x 1.85 mol = v2/1.85 mol x 1.85 mol

13 L = v2

v2= 13 liter

What is a mole?

  • A mole is an SI unit used to measure significant numbers of subatomic particles, such as atoms, molecules, or smaller particles.
  • Any substance has an Avogadro number of molecules in a mole.
  • The value of the Avogadro number is 6.02214076 × [tex]10^{23}[/tex].

How much is a mole of gas?

22.4 L

At STP (Standard Temperature and Pressure = 0 °C, 1 atm), an ideal gas has a volume of 22.41 L/mol.

What makes something a mole?

  • Chemists use the term "mole" because atoms, molecules, and other particles are all very small and require a large amount to even weigh them.
  • A mole is a measurement of the number of particles present, not their mass.

To learn more about mole of gas visit:

https://brainly.com/question/1400967

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