Calculate the amount of substance and the mass of water, which is formed during the explosion of a mixture of hydrogen with a mass of 2 g and oxygen.
1. The reaction that occurs during the explosion of a mixture of hydrogen and oxygen is described by the equation:
2H2 + O2 = 2H2O.
2. Let’s calculate the chemical amount of hydrogen:
n (H2) = m (H2): Mr (H2) = 2: 2 = 1 mol.
3. Set the amount of formed water:
n (H2O) = n (H2) = 1 mol.
4. Let’s calculate the mass of the resulting water:
m (H2O) = n (H2O) * Mr (H2O) = 1 * 18 = 18 g.
Answer: 1 mole, 18 g.
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