# 80 mL of solution contains 20 g of solute. Calculate the concentration in terms of mass by volume percentage of the solution. (a) 25% (b) 35% (c) 45% (d) 55%

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Updated on: September 25th, 2023

80 mL of solution contains 20 g of solute. The concentration in terms of mass by volume percentage of the solution is 25%. Mass of the solute = 20 g, Volume of the solution = 80 mL Concentration in terms of mass by volume percentage.

= mass of solute/ volume of solution x 100

= 20/80 x 100

= 25%

### Solute

Anything dissolved in a solution is referred to as a solute. In a fluid solution, the amount of solvent always outweighs the amount of solute. Two of the most prevalent solutes in our daily lives are salt and water. Salt is a solute because it dissolves in water.

A solute is a material that a solvent can dissolve into a solution. A solute can take on various shapes. It might exist as a solid, a liquid, or a gas. The molecules of the solute are separated and equally distributed by the solvent, or substance, which dissolves the solute.

### Volume percent

Weight/volume percentage, volume/volume percentage, or weight/weight percentage are all possible percent answers. In each instance, the volume or weight of the solute divided by the total volume or weight of the solution yields the concentration in percentage. It is also relevant to the numerator in weight units and the denominator in volume units and is known as weight/volume percent. This is true not only for a solution where concentration must be represented in volume percent (v/v%) when the solute is a liquid.

Volume Percent Formula: Volume percent ={ Volume of solute/volume of solution} x 100

Summary:

## 80 mL of solution contains 20 g of solute. Calculate the concentration in terms of mass by volume percentage of the solution. (a) 25% (b) 35% (c) 45% (d) 55%

20 g of solute is present in 80 mL of solution. 25% is the mass-by-volume percentage of the solution’s concentration. The formula used to determine the volume percent is the ratio of the volume of a solute to solution multiplied by 100.

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