Question

What are the units for mass percent,percentage weight by volume,percent volume by volume,percent volume by weight,molarity and molality. plz guys answer fast if u can thanx​

Answer 1

Answer:

There are a number of ways to express the relative amounts of solute and solvent in a solution. This page describes calculations for four different units used to express concentration:

Percent Composition (by mass)

Molarity

Molality

Mole Fraction

Percent Composition (by mass)

We can consider percent by mass (or weight percent, as it is sometimes called) in two ways:

The parts of solute per 100 parts of solution.

The fraction of a solute in a solution multiplied by 100.

We need two pieces of information to calculate the percent by mass of a solute in a solution:

The mass of the solute in the solution.

The mass of the solution.

Use the following equation to calculate percent by mass:

Answer 2

Answer:

The units of the above given physical quantities are as follows:-

1. Mass percent- no unit. (as it is a percentage value)
2. Percentage weight by volume- no unit (as it is a percentage value)
3. Percentage volume by weight- no unit(as it is a percentage value)
4. Molarity & molality- no unit( since itself is a unit)

Hope this will help you......