Answer to Question #144012 in General Chemistry for Javier

Question

How many moles of hydrogen gas form when 0.200 L of 2.00 M HCl reacts?

Answer 1

2HCl $\rightarrow$ H₂ + Cl₂

which means two moles of HCl will produce 1mole of hydrogen gas.

moles of HCl taken = 0.2 × 2 = 0.4 moles.

so moles of H₂ formed = 0.2moles