How many liters of H2 gas are produced when 67.5 g of solid magnesium react with excess aqueous HCl at 2.00 atm and 310. K? Mg(s) + 2HCl (aq) ⟶ H2 (g) + MgCl2(aq)

Chemistry & Chemical Reactivity
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Chapter13: Solutions And Their Behavior
Section13.5: Colloids
Problem 3.3ACP
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How many liters of H2 gas are produced when 67.5 g of solid magnesium react with excess aqueous HCl at 2.00 atm and 310. K?

Mg(s) + 2HCl (aq) ⟶ H2 (g) + MgCl2(aq)  

Expert Solution
Step 1

Given that : 

Mass of Mg = 67.5 g 

Molar mass of Mg = 24.3 g/mol

Moles of Mg = 67.5g÷24.3g/mol = 2.78 mol 

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