Chemistry · 2022
JEE Main · 27 July 2022, Shift 2 · Q84
When a certain amount of solid A is dissolved in 100 g of water at 25°C to make a dilute solution, the vapour pressure of the solution is reduced to…
When a certain amount of solid A is dissolved in $\displaystyle 100$ g of water at $\displaystyle 25$°C to make a dilute solution, the vapour pressure of the solution is reduced to one-half of that of pure water. The vapour pressure of pure water is $\displaystyle 23.76$ mmHg . The number of moles of solute A added is \_\_\_\_. (Nearest Integer)
Official answer
3
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