Question

Zn (s) + 2HCl (aq) → ZnCl2 (s) + H2 (g)

If 5.09 grams of zinc chloride are formed in this reaction, how many grams of zinc are required?

Answer 1

Answer:

2.440g

Explanation:

Atomic mass of Zn=65.38

Molar mass ofZnCl2=136.68

(Calculations based on stoichiometry)

So,if Zn=65.38 gives ZnCl2=136.68

X g ofZn gives ZnCl2 = 5.09g

Cross multiply to get answer.

Hope it helps you

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