To the sulfuric acid solution was added 12.8 g of zinc. Calculate the volume of gas produced.

univerkov | March 5, 2021 | education

We compose the equation of the ongoing reaction: Zn + H2SO4 = ZnSO4 + H2.
1) Find the molar mass of zinc according to the periodic table: 65.
2) Find the amount of zinc. For this, the mass of zinc is divided by its molar mass: 12.8 / 65 = 0.2 mol.
3) According to the reaction equation, there is one mole of hydrogen for one mole of zinc. This means that the amount of hydrogen substance is 0.2 mol.
4) Find the volume of hydrogen. For this, the amount of hydrogen substance is multiplied by its molar volume: 0.2 * 22.4 = 4.48 liters – the answer.

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