Question

A solution is prepared by 5 gm of a solute in 100 ml of water. find its concentration in terms of mass/mass and mass/volume and compare the concentration.​

Answer 1

Explanation:

When the solute in a solution is a solid, a convenient way to express the concentration is a mass percent (mass/mass), which is the grams of solute per 100g of solution.

Percent by mass=

mass of solute

mass of solution

×100%

Suppose that a solution was prepared by dissolving 25.0g of sugar into 100g of water. The percent by mass would be calculated as follows:

Percent by mass=

25g sugar

125g solution

×100%=20%sugar

Sometimes, you may want to make a particular amount of solution with a certain percent by mass and will need to calculate