Find the volume of hydrogen required to react with 32 g of oxygen.
April 25, 2021 | education
| 1. Let’s write down the reaction equation:
2H2 + O2 = 2H2O;
2.Calculate the chemical amount of oxygen spent on the reaction:
n (O2) = m (O2): M (O2) = 32: 32 = 1 mol;
3. according to the equation, there is one oxygen molecule for two hydrogen molecules, we find the amount of hydrogen:
n (H2) = n (O2) * 2 = 1 * 2 = 2 mol;
4.calculate the volume of hydrogen:
V (H2) = n (H2) * Vm = 2 * 22.4 = 44.8 liters.
Answer: 44.8 liters.
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