A compound is found to be 30.45 N and 69.55 O by mass. If 1.63 g ...

[torybrooks]

A compound is found to be 30.45 N and 69.55  O by mass. If 1.63 g of this compound occupy 389 mL at 0.00C and 775 mm Hg, what is the molecular formula of the compound?
 
  A) NO2
  B) N2O
  C) N4O2
  D) N2O5
  E) N2O4

Question 2

How many sodium ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g/mol.
 
  A) 1.52  1027 sodium ions
  B) 4.76  1020 sodium ions
  C) 2.10  1021 sodium ions
  D) 1.05  1021 sodium ions
  E) 9.52  1020 sodium ions

[Dinolord]

Answer to Question 1

E

Answer to Question 2

E

[torybrooks]

Excellent

[epscape]

Thanks for the timely response, appreciate it