Could you help me with these?

Question

1 - an ideal gas at a temperature of 300K occupies a rigid cubical container of a volume of 32cm^3. the pressure exerted by the gas is 1.05431x10^4N m^-2. calculate the amount of gas present.

and could you give me the calculations as well, thnx

Answer 1

P*V=n*R*T

You know T, V, P, and the gas constant R... solve for n (number of moles).

n=P*V/(R*T)

Fix your units or it will be messy... convert cubic centimeters to cubic meters.