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From The Equation Below What Mass Of Hydrogen Would Be Produced If 12.0 G Of Magnesium Reacted Completely With Dilute Hydrochloric Acid? (H = 1, Mg = 24) - Erudites Academy

From the equation below what mass of hydrogen would be produced if 12.0 g of magnesium reacted completely with dilute hydrochloric acid? (H = 1, Mg = 24)

by | Aug 23 | Chemistry WAEC | 0 comments

Mg2 + 2HCI(aq) → MgCI2(g) + H2(g)

 

A. 1.0g
B. 2.0g
C. 6.0g
D. 12.0g
E. 24.0g

Correct Answer: Option A
Explanation

Mg2 + 2HCI(aq) → MgCI2(g) + H2(g)

24g of Mg2 reacts with 2g H2

therefore, 1g of Mg will react with = 2/24g H2

12g Mg2 = 2/24×12g H2

= 1g H2.

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