a cylinder of argon gas contains 50.0 l of ar at 18.4 atm and 127 Celsuis. How many grams are in the cylinder?

Question

Chemistry

Allison Horn

21 February, 15:52

a cylinder of argon gas contains 50.0 l of ar at 18.4 atm and 127 Celsuis. How many grams are in the cylinder?

+4

Answers (1)

Know the Answer?

Diana West · Answer 1

11 grams of argon gas

Explanation:

PV = nRT

P = 18.4 atm

V = 50 L

n = find moles then use molar mass to convert to grams

R = atm gas constant = 8.314

T = IN Kelvins* * = 127 C + 273 = 400 K

molar mass of Ar = 40g / mol

18.4 (50) = 8.314 (400) n

n =.276 mol Ar

.276 (40) = 11 grams of Argon Gas