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A0.200-g sample of unknown metal (X) is dropped into hydrochloric acid and releases 80.3
mL of hydrogen gas at STP. Using the Ideal Gas Law, the number of moles of the unknown ? is yielding a molar mass of?
Referring to the Periodic
Table, the name of the unknown metal is ?
and symbol ?
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A0.200-g sample of unknown metal (X) is dropped into hydrochloric acid and releases 80.3
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