Suppose you need to make a stock solution of lactose with a concentration of 500 mM. The molecular weight of lactose is 342.3 g/mol. How many grams of lactose (in the form of a solid powder) should you dissolve in 100 mL of water to make this 500 mM stock solution? g

Q: CI

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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.