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? asked in Science & MathematicsChemistry · 7 years ago

EASY CHEMISTRY PROBLEM?

How many grams of hydrogen are contained in 46.8 g of H3PO4 ?

I know it's easy. I'm doing something wrong though.

1 Answer

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  • Dr W
    Lv 7
    7 years ago
    Favorite Answer

    46.8g H3PO4 x (3.024g H / 98.00g H3PO4) = 1.44g H

    yes.. the math is dimensional analysis

    and.. the unit factor is mass fraction H in H3PO4

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