Calculate the amount of substance corresponding to 19.6 g of phosphoric acid.
| December 12, 2020 | education
The formula of orthophosphoric acid is Н3РО4. To find the amount of a substance, you need to divide the mass of the substance by its molar mass:
n (H3PO4) = m (H3PO4) \ M (H3PO4) = 19.6 g \ 98 (g \ mol) = 0.2 mol.
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