Author Question: What mass of dinitrogen monoxide, N2O, contains the same number of molecules as 3.00 g of ... (Read 93 times)

asd123 · **on:** Aug 27, 2018

What mass of dinitrogen monoxide, N2O, contains the same number of molecules as 3.00 g of trichlorofluorometh ane, CCl3F?

A) 0.106 g
B) 0.961 g
C) 1.04 g
D) 9.37 g

Question 2

The mole fraction of nitrous oxide in dry air near sea level is 0.00000050. The concentration of nitrous oxide is ________ molecules per liter, assuming an atmospheric pressure of 739 torr and a temperature of 29.5 C.

A) 1.5 10-5
B) 2.0 10-8
C) 1.2 1016
D) 8.9 1018
E) 1.2 1017