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Potassium metal will react with a hydrochloric acid solution to produce hydrogen gas and an aqueous solution of potassium chloride as described below:
2 K(s) + 2 H1Cl1 (aq) --> 1 H2 (g) + 2 K1Cl1 (aq)
If I collect the hydrogen gas from the above chemical reaction and the hydrogen gas occupied 4.06L at a temperature of 103degC and pressure of 2.41E3 mmHg, how many grams of potassium reacted (assume all gas was collected, no other chemical reaction occurred and potassium was the limiting reactant).