What is the equivalent of ten (10) ppm?

Ten parts per million (ppm) is equivalent to ten milligrams per liter (mg/l). This is because ppm is often used in contexts where the concentration of a substance is being measured in water or solutions, and it reflects the mass of solute per million parts of solution.

To understand why ten ppm translates to ten mg/l, it's useful to know that one ppm is defined as one milligram of solute per liter of solution when dealing with water at a standard temperature and pressure. Therefore, if you have ten ppm, you simply multiply the value by the concentration factor, resulting in ten mg of solute per liter.

Other options do not represent the proper conversion of ppm into a relevant concentration unit when focused on water-based solutions. For example, ten grams per liter (g/l) would indicate a much higher concentration than ten ppm, while one gram per liter (g/l) is also too high. Similarly, one milligram per liter (mg/l) would only represent one ppm, not ten. Thus, ten ppm consistently aligns with the measurement of ten mg/l.