Question

Which is a way to express concentration of a solution?

A) Parts per billion
B) Moles
C) Molar mass
D) Force per square meter

Answer 1

The concentration of a solution can be expressed in various ways, including molarity, parts per billion (ppb), and mass percentage.

Step-by-step explanation:

The concentration of a solution can be expressed in various ways, including:

• Molarity: It is defined as the number of moles of solute per liter of solution. For example, a 1 Molar (1M) solution contains 1 mole of solute dissolved in 1 liter of solution.
• Parts per billion (ppb): It is a ratio of micrograms of solute per kilogram of solution. It is used to express extremely dilute concentrations.
• Mass percentage: It is the ratio of the mass of the solute to the mass of the solution times 100. For example, if a solution contains 10 grams of solute and 90 grams of solvent, the mass percentage of the solute is 10%.