# Answer to Question #25352 in Inorganic Chemistry for Amanda

Question #25352

A sample of hydrogen gas (H2) has a volume of 17.4 L at a temperature of 0°C and a pressure of 1.60 atm. The number of moles of H2 molecules of hydrogen in the sample is

Expert's answer

The ideal gas law can be used for solving this question:

PV = nRT

n is amount = ?

P is pressure = 1.60 atm = 162.12 kPa

V is volume = 17.4 L

R is gas constant = 8.31

T is temperature = 0°C = 273K

n = PV/RT

n = 162.12 * 17.4 / (8.31*273) = 1.24 mol

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