Question

If you have 0.985 g of CH4 gas at 98 °C and 855 mmHg, what volume would the gas occupy

Answer 1

Step-by-step explanation:

Use the ideal gas law :

PV = n R T P = 855 Torr R =(gas constant) = 62.363598 L Torr / (K mol)

T = (98 + 273.15 ) K V = ?

molecular weight of CH4 = 12.011 + 1.008 * 4 = 16.043 gm/mole

then n = # moles = .985 gm / 16.043 gm / mole = . 0614 moles

Plug into the formula :

PV = nRT

V = n R T / P = .0614 * 62.363598 * (98+273.15) / 855 <=========

I think you can finish this with your calculator to find the volume in liters ......