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When 0.30 g of a metal is dissolved in e...

When 0.30 g of a metal is dissolved in excess mass of dilute hydrochloric acid, 280 `cm^(3)` of hydrogen is liberated at STP. Calculate the equivalent mass of the metal.

Text Solution

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Mass of metal = 0.3 g
Volume of hydrogen liberated at STP = 280 `cm^(3)`
Equivalent mass of a metal
`=("mass of metal"xx11,200)/("volume of hydrogen at STP")`
`=(0.3xx11,200)/(280)=12`
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