What mass of dinitrogen monoxide, N2O, contains the same number ...

[asd123]

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

[Jbrasil]

Answer to Question 1

B

Answer to Question 2

C

[asd123]

Wow, this really help

[nyrave]

Thanks for the timely response, appreciate it