Using the Ideal Gas Law in a Limiting-Reactant Problem
Problem: Alkali metals react with halogens to form ionic metal halides. What mass of potassium chloride forms when 5.25 L of chlorine gas at 0.950 atm and 293 K reacts with 17.0 g potassium?
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Plan: Find mol of Cl2(g) from the known V, P, and T. Use the balanced equation to find the limiting reactant and the amount of product.
Solution: The balanced equation:
Summary of gas variables:
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