Answer to Question #348039 in General Chemistry for Scott

Question

What pressure will be exerted by 25 g of CO2 at a temperature of 25 degrees celsius and a volume of 500 ml

Answer 1

M_r ( CO₂) = 44 g/mol

T = 25°C = 298 K

V = 500 ml = 0,5 l

m(CO₂) = 25 g

P = ?

1.

n = m/M = 25 g / 44 g/mol =0,5682 mol CO₂

2.

PV = nRT

R — universal gas constant = 8,31

P = nRT / V

P = 0,5682 * 8,31 * 298 / 0,5 = 2814 kPa

ANSWER: 2814 kPa