Use neutral detergents to clean aluminum cookware. Aluminum is an active metal, it easily reacts with acids

Use neutral detergents to clean aluminum cookware. Aluminum is an active metal, it easily reacts with acids and alkalis with the release of hydrogen. For example, sodium hydroxide in an aqueous solution interacts with aluminum to form a complex compound: 2Al + 2NaOH + 6H2O → 2Na [Al (OH) 4] + 3H2 ↑. calculate the volume of hydrogen that will be released during the interaction of 10g. aluminum with sodium hydroxide

Given:
m (Al) = 10 g

To find:
V (H2) -?

Decision:
1) 2Al + 2NaOH + 6H2O => 2Na [Al (OH) 4] + 3H2 ↑;
2) n (Al) = m (Al) / M (Al) = 10/27 = 0.37 mol;
3) n (H2) = n (Al) * 3/2 = 0.37 * 3/2 = 0.56 mol;
4) V (H2) = n (H2) * Vm = 0.56 * 22.4 = 12.5 liters.

Answer: The volume of H2 is 12.5 liters.