What volume would a 0.250 mole sample of h2 gas occupy, if it had a which has a pressure of 1.70 atm, and a temperature of 35 °c?

The volume that would be occupied by 0.25 moles sample of H2 is calculated using ideal gas equation formula

that is PV = nRT

P (pressure) = 1.7 atm

V (volume) ?

n (number of moles) = 0.250 moles

R (gas constant) = 0.0821 l. atm/mol. K

T (temperature in kelvin) = 35+273 = 308k

by making V the subject of the formula V=nRT/P

= (0.250 moles x 0.0821 L. atm/k. mol x 308 k) / (1.70 atm) = 3.7 L of H2 gas