Convert 450 ppm to ug/L
The correct answer and explanation is :
To convert 450 ppm (parts per million) to µg/L (micrograms per liter), we need to understand the relationship between the two units.
Conversion Formula:
1 ppm is equivalent to 1 mg/L (milligram per liter), because both units represent a ratio of mass to volume in the same way:
- 1 ppm = 1 mg of a substance in 1 liter of solution.
Now, to convert milligrams (mg) to micrograms (µg):
- 1 mg = 1,000 µg.
So, if 1 ppm = 1 mg/L, we can express this as:
- 1 ppm = 1,000 µg/L.
Conversion Process:
Given that 450 ppm is equal to 450 mg/L:
- 450 mg/L = 450 × 1,000 µg/L = 450,000 µg/L.
Final Answer:
450 ppm is equivalent to 450,000 µg/L.
Explanation:
The relationship between parts per million (ppm) and micrograms per liter (µg/L) is straightforward because ppm is typically used in solutions where the solvent is water, and water has a density close to 1 g/mL. Thus, the mass of the substance in ppm is equivalent to the mass in milligrams per liter. Since 1 mg equals 1,000 µg, we simply multiply the value in ppm by 1,000 to convert from mg/L to µg/L.
In environmental science, ppm is commonly used to measure the concentration of substances like pollutants in air, water, or soil. It represents one unit of the substance per million units of solution, which is easily translated into mass-based concentrations, like µg/L, when measuring substances in liquids.
In conclusion, converting 450 ppm to µg/L involves multiplying by 1,000, yielding 450,000 µg/L. This conversion is crucial in many scientific and environmental fields for accurately reporting concentrations of substances in water.