For solutions in water , a part per million is roughly equivalent to _____.
A) g/mL
B) mg/mL
C) g/L
D) mg/L
E) kg/mL

Question

Quizplus · Accepted Answer

A part per million (ppm) is a unit of concentration that denotes a ratio of the substance's mass to the mass of the solution or medium, multiplied by one million. In the case of solutions in water, one part per million is approximately equivalent to one milligram per liter (mg/L), which is option D. Option C (g/L) is not correct because it represents a concentration that is 1000 times greater than ppm, and options A, B, and E do not represent commonly used units of concentration for solutions in water.

For Solutions in Water , a Part Per Million Is