Limiting Reagents

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in the synthesis of FeC2O4 (dot) 2H2O, which reagent would be the limiting reagent? FeSO4(NH4)2SO4 (dot) 6H2O - 2.68g. H2C2O4 (dot) 2H2O - 1.99g.

I just want to know how the H2Os would effect finding the limiting reagent. As in do they change the ratio? The molecular mass?

Thank you!

  • Limiting Reagents -

    The H2O molecules (water of crystallization) do not change the ratio (as long as it isn't the ratio of the water molecules); they do change the molar mass of the parent compound. For example, CuSO4 has a molar mass of about 159.6 while CuSO4.5H2O has a molar mass that is 5*18 (about 90) higher for about 249.7 g/mol.

  • Limiting Reagents -

    Thank you :)

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