Q. Zinc and hydrochloric acid react according to equation
$Z n (s) + 2 H Cl (a q) \to Z n C l_{2} (a q) + H_{2} (g)$ If 0.3 mole ‘Zn’ are added to hydrochloric acid containing 0.5 mole HCl, then how many maximum moles of $‘ H_{2} ’$ are produced?

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0.12

Solution: