If a solution contains 6.8 ppm (m/v) of a solute, how many grams of that solute would be present in a 25 mL sample of the solution?

Question

Quizplus · Accepted Answer

PPM stands for parts per million, which means 6.8 ppm is equivalent to 6.8 mg of solute per liter of solution. To find the amount in a 25 mL sample, convert liters to mL (1 L = 1000 mL), then calculate: (6.8 mg/L) * (25 mL / 1000 mL/L) = 0.17 mg = 1.7 x 10^-4 g.

If a Solution Contains 6