The electrolysis of water forms H2 and O2. 2​H_2O→2​H_2+​O_2 What is the percent yield of cap o sub 2 if 10 point 2 g of cap o sub 2 is produced from the decomposition of 17 point 0 g of cap h sub 2 cap o ? Use percent Yield is equal to Actual yield over Theoretical yield times 100

The balanced equation shows that 2 moles of H₂O produce 1 mole of O₂. From 17.0 g of H₂O, the theoretical O₂ yield is (17.0 ÷ 18.0 ÷ 2) × 32.0 = 15.1 g. Percent yield = (actual yield ÷ theoretical yield) × 100 = (10.2 ÷ 15.1) × 100 = 67.6%, so the correct choice is 67.6 percent.

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