Question

a compound h2x with molar weight o 80g is dissolved in a solvent having density of 0.4 g per mole assuming no change in volume upon dissociation the molarity of 3.2 molar solution is​

Answer 1

Answer:

Explanation:

In 3.2 molar solution,

We have amount of solute = 3.2 mol

Volume of solution = 1.0 L

Since there occurs no change in volume on dissolving solute,

Volume of solvent = 1L

Mass of solvent = (1.0L)(0.4 gmL-1)

                             = (103mL)(0.4 gmL-1)

                              =400 g =0.4kg

Molality of the solution = 3.2/0.4 =8molkg-1

Answer 2

Explanation:

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