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What is the definition of the molar mass of a substance?
- A The mass of 1 gram of that substance.
- B The mass of 1 kilogram of that substance.
- C The mass of 1 mole of that substance.
- D The mass of 1 milligram of that substance.
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The molar mass of a substance, expressed in grams, is numerically equal to 1 mole of that substance. For example, the molar mass of carbon (C) is 12.01 grams, which means 12.01 grams of carbon constitute 1 mole of carbon.
