Stoichiometry

AP Chemistry· difficulty 3/5

N2 + 3 H2 -> 2 NH3 2 mol N2 3 mol H2 NH3?

Which is the limiting reactant?

  • A

    H2

    check_circle
  • B

    N2

  • C

    Both equal

  • D

    Cannot tell

Explanation

Required ratio is 1 N2 : 3 H2. With 2 N2 and 3 H2, H2 limits since only 1 mol N2 reacts (3/3=1), leaving N2 in excess.

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