Question

According to the EPA, the maximum contaminant level (MCL) of antimony in drinking water is 0.0060 mg/L.A farmer recently dug a new well for his property. He sends a 12.0 mL 12.0 mL sample of the well water to the EPA to be tested for the presence of antimony. What is the maximum amount of Sb Sb (in μg μg ) that can be present in this 12.0 mL 12.0 mL sample based on its MCL?

Answer 1

The maximum amount of Sb that can be present in this 12 mL sample based on MCL, is 0.072 μg

Step-by-step explanation:

The maximum contaminant level according to EPA is given as:

Max Level = 0.006 mg/L

Max Level = (0.006 mg/L)(1 L/1000 mL)

Max Level = 0.006 x 10^-3 mg/mL

Now, the sample size is 12 mL. Hence the maximum amount of Antimony (Sb) can be ount out by the use of maximum Contaminant Level.

Max. Amount = (Max. Level)(Sample Size)

Max. Amount = (0.006 x 10^-3 mg/mL) (12 mL)

Max. Amount = 0.072 x 10^-3 mg

Max. Amount = 0.072 μg