92grams of NaBr was dissolved in 80gram of water at 25degree C to get saturated solution of Sodium Bromide.What is the solubility of NaBr?

Here since 2 terms are given,mass of solute NaBr and mass of water we will use the formula given below to find out the solubility.
Equation for percent by mass
= mass of NaBr/Mass of NaBr + Mass of water * 100 = 92  / 92 +80*100 = 92 /172*100 = 53.5 %
So the solubility of NaBr in water is 53.5 % at 250C.

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