How Is The Molar Mass Of A Substance Determined?

5 Questions | By Kwchiro | Updated: Mar 22, 2022 | Attempts: 637

The molar mass is the mass of all the atoms in a molecule in grams per mole. The molar mass M is a physical property defined as the mass of a given substance divided by the amount of substance. Do you understand how the molar mass of a substance is determined? Take this test and find out.

Questions and Answers

1.

What is the molar mass of Carbon?
- A.
  
  6 g/mol
- B.
  
  12.01 g/mol
- C.
  
  19.00 g/mol
- D.
  
  1.01 g/mol
2.

What is the molar mass of CH₄ (methane)?
- A.
  
  12.01 g/mol
- B.
  
  13.02 g/mol
- C.
  
  16.05 g/mol
- D.
  
  32.10 g/mol
3.

What is the molar mass of (NH₄)₂CO₃ (Ammonium carbonate)?
- A.
  
  96.11 g/mol
- B.
  
  82.10 g/mol
- C.
  
  106.11 g/mol
- D.
  
  43.01 g/mol
4.

What is the molecular mass of Cu₃(PO₄)₂?
- A.
  
  253.49 g/mol
- B.
  
  380.59 g/mol
- C.
  
  110.22 g/mol
- D.
  
  348.59 g/mol
5.

What is the molecular mass of Aluminum nitrate Al(NO₃)₃from this equation: 2Al(s) + 3Fe(NO₃)₂(aq) à 3Fe(s) + 2Al(NO₃)₃(aq)
- A.
  
  213.01 g/mol
- B.
  
  335.98 g/mol
- C.
  
  56.99 g/mol
- D.
  
  141.01 g/mol