Problem: If sufficient acid is used to react completely with 21.0 grams of Mg Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)  what volume of hydrogen at STP would be produced? 1. 9.68 liters 2. 19.37 liters 3. 10.60 liters 4. 22.40 liters 5. 4.84 liters

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Problem Details

If sufficient acid is used to react completely with 21.0 grams of Mg
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) 
what volume of hydrogen at STP would be produced?

1. 9.68 liters

2. 19.37 liters

3. 10.60 liters

4. 22.40 liters

5. 4.84 liters

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