• In a laboratory situation, it is common to determine the amount of a substance by finding its mass in grams.
  • In this concept, we will focus on the type of problem where both the given and the unknown quantities are expressed in moles.
  • The production of ammonia (NH3) from nitrogen and hydrogen gases is an important industrial reaction called the Haber process, after German chemist Fritz Haber.
  • The most useful quantity for counting particles is the mole, so if each coefficient is multiplied by a mole, the balanced chemical equation tells us that 1 mole of nitrogen.
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