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Calculate the amount of copper which on ...

Calculate the amount of copper which on reaction with conc. `H_(2)SO_(4)` produces 50 ml of `SO_(2)` at `27^(@)C and 750` mm pressure. (Cu=63.5)

Text Solution

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Let the volume of `SO_(2)` at STP be Vml
`therefore(760timesV)/(273)=(50times750)/(300) or, V=44.9ml`
Now, `underset(63.5g)(Cu)+H_(2)SO_(4) to CuSO_(4)+underset(22400ml(at STP))(SO_(2))+2H_(2)O`
Thus 22400ml of `SO_(2)` is produced by 63.5 g of Cu
`therefore` 44.9 ml of `SO_(2)` is produced by `(63.5times44.9)/(22400)g` of Cu=0.127g of Cu.
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