(a) Differentiate between molarity and molality for a solution. How does a change in temperature influence their values?(b) Calculate the freezing point of an aqueous solution containing 10.50 g of MgBr2 in 200 g of water. (Molar mass of MgBr2 = 184 g mol-1) (Kf for water is 1.86 K kg mol-1)

Q: the molality of Cu(NO3)2 in a solution containing 38.5g Cu(NO3)2 in 154.1g of water.

A:

Q: Calculate the freezing point of a solution made by dissolving 1.00 mole of NaCl in 1000. g of H2O.

A: We will use formula of ∆Tf. ∆Tf=Tf°-Tf

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.