Brass is a substitutional alloy consisting of a solution ofcopper and zinc. A particular sample of red brass consistingof 80.0 % Cu and 20.0 % Zn by mass has a density of8750 kg/m3. (a) What is the molality of Zn in the solidsolution? (b) What is the molarity of Zn in the solution?

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

A:

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Q: What is the molality of a solution

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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.