Under certain conditions, neon (Ne) gas diffuses at a rate of 7.0 centimeters per second. Under the same conditions, an unknown gas diffuses at a rate of 4.9 centimeters per second. What is the approximate molar mass of the unknown gas?

Question

6.5 g/mol

11 g/mol

20 g/mol

41 g/mol

Answer 1

Are omitting the word cubic from cubic centimeters. 7 cm/sec and 7 cc/sec are two different rates.

Answer 2

41