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Use the problem below to answer the question: when a current is passed through a solution of salt water, sodium chloride decomposes according to the following reaction: 2nacl + 2h2o → 2naoh + cl2 + h2. how many grams of chlorine gas, cl2, are given off if 7.5 grams of sodium chloride, nacl, are decomposed? the molecular mass of nacl is 58.44 g/mole. the molecular mass of cl2 is 70.90 g/mole.
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