Worksheet: Relative Formula Mass

In this worksheet, we will practice defining relative formula mass and calculating its value for given molecular and structural formulas.

Q1:

Which of these substances has the highest molar mass?

  • AThe herbicide paraquat, C H N C l 1 2 1 4 2 2
  • BThe anesthetic halothane, C H B r C l F 2 3
  • CCaffeine, C H N O 8 1 0 4 2
  • DA typical soap, C H C O N a 1 7 3 5 2
  • EUrea, C O ( N H ) 2 2

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