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3 years ago

PLEASE HELP DUE TODAY

Chemistry

1 answer:

svp [43]3 years ago

5 0

Answer:

271.0 L

Explanation:

Given data:

Number of moles of hydrogen = 12.1 mol

Volume = ?

Solution:

The one mole of gas at standard temperature and pressure occupy the volume of 22.4 L.

One mole volume = 22.4 L

For 12.1 mol,

12.1 mol × 22.4 L / 1 mol

271.0 L

Now by putting the standard conditions we can calculate the number of moles and check the answer weather it is wrong or right.

Formula:

PV = nRT

R = general gas constant = 0.0821 atm.L/mol.K

standard temperature = 273.15 K

standard pressure = 1 atm

Now we will put the values in formula.

PV = nRT

n = 1 atm × 271.0 L / 0.0821 atm.L/mol.K × 273.15 K

n = 271.0 L .atm / 22.4 atm. L/mol

n = 12.1 mol

so answer is correct

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