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?

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

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

water   molecules stay close to each other through cohesion, the collective action of hydrogen bonds between water molecules. cohesion plants draw water upwards from the root through the stem's transport tubes (xylem) to the leaf. this transport occurs even in large trees and against gravity. transpiration, evaporation of water from plant leaves, creates a tension on water molecules being pulled up from the stem and roots.

water also has high (the attraction of one substance to another) properties because of its polar nature. adhesion of water molecules to plant cell walls counteract gravity while water is transported from roots to leaves.

water exhibits a very high surface tension when compared to other liquids. surface tension is a property of a liquid that holds the surface together and allows it to resist an external force. by capillary action, the water forms concave menisci inside the pores. the high surface tension of water pulls the concavity outwards, generating enough force to lift water from the roots to the leaves of plants.

thus, cohesion, along with adhesion and surface tension creates a capillary action that keeps water molecules interacting and moving through the plants out to the leaf cells.

therefore, option d) is the correct answer.

explanation:

answer: mercury

explanation: