The volume of hydrogen formed by the interaction of hydrochloric acid with 0.2 mol of magnesium is …
| March 27, 2021 | education
1. We write down the reaction equation:
2HCl + Mg = MgCl2 + H2 ↑;
2.the coefficients before magnesium and hydrogen in the equation are equal, therefore, the chemical quantities of these substances will be equal:
n (H2) = n (Mg) = 0.2 mol;
3.Calculate the volume of hydrogen:
V (H2) = n (H2) * Vm = 0.2 * 22.4 = 4.48 dm3.
Answer: 4.48 dm3.
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