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Calculate the strength of 10 volume hydrogen peroxide solution. |
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Answer» Solution :HYDROGEN peroixde decomposes on HEATING ACCORDING to the equation : `{:(2H_(2)O_(2) to 2H_(2)O +""O_(2)),( 2xx34g ""22.4 "litres at N.T.P"),(=68 g"""or 22400 mL at N.T.P."):}` By definition, 10 volume solution of `H_(2)O_(2)` means that 1 L of this `H_(2)O_(2)` will give 10 L of `O_(2)` at N.T.P. From the equation, 22.4 litres of `O_(2)` at N.T.P. are obtained from `2xx34w` or 68 g of `H_(2)O_(2)` . `therefore 10` L of `O_(2)` at N.T.P. will be obtained from `H_(2)O_(2)=(68)/(22.4)xx10=30.36 g` Therefore, strength of `H_(2)O_(2)` in 10 volume `H_(2)O_(2)=30.36 g L^(-1)` |
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