Define excess aqueous hydrochloric acid

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Reference no: EM13524129

Excess aqueous Hydrochloric acid was added to a 0.415 gram sample of an alloy of aluminum and copper.the aluminum dissolved, evolving hydrogen gas, while the copper, remained inert. 436 ml of gaseous hydrogen was collected over water at 24.6 degrees celsius and 746.6 torr. what is the weight percent of aluminum in the alloy?

Reference no: EM13524129

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