Wednesday
October 1, 2014

Homework Help: SCIENCE/CHEM

Posted by Andy on Wednesday, May 12, 2010 at 9:22pm.

the purity of zinc is to be determined by measuring the amount of hydrogen formed when a weighed sample of zinc reacts with an excess of HCL acid.the sample weighs 0.198 grams. what amount of hydrogen gas at STP will be obtained if the zinc is 100% pure?
need a metric answer please thans andy

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