1.

One litre of `N//2 HCl` solution was heated in a beaker. When the volume was reduced to `600 mL`, `9.125 g` of `HCl` was lost out. The new normality of solution is a. `~~ 0.4` b. `~~ 0.8` c. `~~ 0.4` d. `~~ 0.2`A. `6.85`B. `0.685`C. `0.1043`D. `6.50`

Answer» Correct Answer - B
Milli-mole of `HCl=1,000xx(1)/(2)=500`
Milli-mole of `HCl` given out `=(3.25)/(36.5)xx10^(23)= 89.04`
Milli-mole of `HCl` left `= 500-89.04=410.96`
New molarity `=(410.96)/(600)=0.685 M`


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