Question

A water sample B has a turbidity reading of 50 NTU. If a 50-ppm standard has a turbidity reading of 100 NTU, what is the concentration of the analyte in A that causes the water to be turbid?

Answer 1

The concentration of the analyte $= \frac{50 \;ppm \times 50 \;NTU}{100\;NTU} = 25 \;ppm$