Mg metal reacts with HCl to produce hydrogen gas.
Mg(s) + 2HCl(aq) → H2(g) + MgCl2(aq)
a. What volume, in liters, of hydrogen at 0 °C and 1.00 atm (STP) is released when 8.25 g of Mg reacts?
b. How many grams of magnesium are needed to prepare 5.00 L of H2 at 735 mmHg and 18 °C?
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