Examlex
The purity of a sample containing zinc and weighing 0.312 g is determined by measuring the amount of hydrogen formed when the sample reacts with an excess of hydrochloric acid.The determination shows the sample to be 84.0% zinc.What amount of hydrogen (measured at STP) was obtained?
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Canada
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1901
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Laval
A city in the Canadian province of Quebec, located on Île Jésus across from Montreal, known for its educational institutions and cultural diversity.
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