How do I calculate ppm?

Understand the Problem

The question is asking for the method to calculate parts per million (ppm), which is a way to express very dilute concentrations of substances. The calculation typically involves the ratio of a substance to the total amount of the solution, multiplied by one million.

\frac{\text{Mass or Volume of Solute}}{\text{Total Mass or Volume of Solution}} \times 10^6

To calculate ppm, you divide the mass or volume of the solute by the total mass or volume of the solution, then multiply by $10^6$

Steps to Solve

1. Determine the mass or volume of the solute

The solute is the substance that is dissolved in the solution. Determine the mass (in grams) or volume (in liters) of the solute in the solution.

1. Determine the mass or volume of the solution

Determine the total mass (in grams) or volume (in liters) of the entire solution, which includes both the solute and the solvent.

1. Calculate the ratio of solute to solution

Divide the mass or volume of the solute by the total mass or volume of the solution.

$$ext{Ratio} = rac{ ext{Mass or Volume of Solute}}{ ext{Total Mass or Volume of Solution}}$$

1. Convert to ppm

Multiply the ratio by $10^6$ to convert it to parts per million.

$$ext{ppm} = ext{Ratio} imes 10^6$$

To calculate ppm, you divide the mass or volume of the solute by the total mass or volume of the solution, then multiply by $10^6$