What mass of phosphoric acid corresponds to the amount of substance 0.2 mol?
| January 13, 2021 | education
1) According to the periodic table, we calculate the molar mass of orthophosphoric acid (H3PO4). To do this, add up the atomic mass of all components of the substance: 1 * 3 + 31 + 16 * 4 = 98.
2) Find the mass of the acid corresponding to 0.2 mol of the substance. To do this, we multiply the amount of substance by the molar mass: 98 * 0.2 = 19.6 g – the answer.
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