Answered

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If I have an unknown quantity of gas at a pressure of 0.72 atm, a volume of 22
liters, and a temperature of 30° C, how many moles of gas do I have?

Sagot :

Samueladesida43idn

Answer:

0.64 mol

Explanation:

Using ideal gas equation as follows;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information provided in this question;

P = 0.72atm

V = 22 L

T = 30°C = 30 + 273 = 303K

n = ?

Using PV = nRT

n = PV/RT

n = (0.72 × 22) ÷ (0.0821 × 303)

n = 15.84 ÷ 24.88

n = 0.64 mol

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