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Author Question: How many N2O4 molecules are contained in 76.3 g N2O4? The molar mass of N2O4 is 92.02 g/mol. A) ... (Read 580 times)

nevelica

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on: Aug 27, 2018
How many N2O4 molecules are contained in 76.3 g N2O4? The molar mass of N2O4 is 92.02 g/mol.
 
  A) 5.54  1025 N2O4 molecules
  B) 7.26  1023 N2O4 molecules
  C) 1.38  1024 N2O4 molecules
  D) 4.59  1025 N2O4 molecules
  E) 4.99  1023 N2O4 molecules

Question 2

If an object has a density of 8.65 g/cm3, what is its density in units of kg/m3?
 
  A) 8.65  10-3 kg/m3
  B) 8.65  10-7 kg/m3
  C) 8.65  103 kg/m3
  D) 8.65  101 kg/m3
  E) 8.65  10-1 kg/m3


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matt95

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

E

Answer to Question 2

C


nevelica

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Reply 2 on: Aug 27, 2018
:D TYSM

amcvicar

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Reply 3 on: Yesterday
Excellent

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