How much hydrogen will be released when 10 g of cobalt interacts with hydrochloric acid?

1. The interaction of cobalt with hydrochloric acid occurs according to the equation:

Co + 2HCl = CoCl2 + H2 ↑;

2.Calculate the chemical amount of cobalt:

n (Co) = m (Co): M (Co) = 10: 59 = 0.1695 mol;

3. Determine the amount of evolved hydrogen:

n (H2) = n (Co) = 0.1695 mol;

4.calculate the volume of hydrogen:

V (H2) = n (H2) * Vm = 0.1695 * 22.4 = 3.7968 HP

Answer: 3.7968 liters.



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