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Author Question: 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 ... (Read 133 times)

torybrooks

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on: Aug 27, 2018
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


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Dinolord

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Reply #1 on: Aug 27, 2018
Answer to Question 1

E

Answer to Question 2

E


torybrooks

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

bblaney

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Reply 3 on: Yesterday
Excellent

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