Question

1) How many moles of hydrogen will be produced when reacted with 0.0240 moles of sodium in the reaction? ___ N + ___H2O → ___ NaOH + ___H2

Answer 1

Moles (H2) = 0.012

First, balance the equation

2Na + 2H2O -> 2NaOH + H2

Then, use stoichiometry with the balanced equation and solve

(0.024mol Na)•( (1mol H2)/(2mol Na) )

0.012mol H2