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A sample of potassium metal (K) was reacted with excess water, producing hydrogen gas and aqueous potassium hydroxide. The hydrogen gas was collected over water

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A sample of potassium metal (K) was reacted with excess water, producing hydrogen gas and aqueous potassium hydroxide. The hydrogen gas was collected over water at 45C (see diagram below, note manometer) The volume of the gas was 450mL. How many g of potassium reacted? The equation is 2K(s)+2H2O(0)H2(g)+2KOH(aq) none of the answers are correct 1.11gK 0.506gK 1.24gK A sample of potassium metal (K) was reacted with excess water, producing hydrogen gas and aqueous potassium hydroxide. The hydrogen gas was collected over water at 45C (see diagram below, note manometer) The volume of the gas was 450mL. How many g of potassium reacted? The equation is 2K(s)+2H2O(0)H2(g)+2KOH(aq) none of the answers are correct 1.11gK 0.506gK 1.24gK

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