What volume of hydrogen will be released when 6 g of beryllium is dissolved in hydrochloric acid?
August 6, 2021 | education
| 1. The dissolution of beryllium in water is described by the reaction equation:
Be + 2H2O = Be (OH) 2 + H2 ↑;
2.Calculate the chemical amount of beryllium entering into the reaction:
n (Be) = m (Be): M (Be) = 6: 9 = 0.6667 mol;
3.the interaction of 1 mole of beryllium with water leads to the release of 1 mole of hydrogen, then the amount of hydrogen:
n (H2) = n (Be) = 0.6667 mol;
4.Set the volume of released hydrogen:
V (H2) = n (H2) * Vm = 0.6667 * 22.4 = 14.93 liters.
Answer: 14.93 liters.
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