Problem: A 2,400-gram sample of an aqueous solution contains 0.012 gram of NH3. What is the concentration of NH3 in the solution, expressed as parts per million?A) 15 ppmB) 50 ppmC) 20 ppmD) 5.0 ppm

FREE Expert Solution

We’re being asked to calculate the concentration of NH3 in the solution, expressed as parts per million (ppm)


Let’s first define ppm.

1 ppm means 1 part of solute for every 106 parts of the solution

Can be written as:

ppm=mass of solutemass of solution×106

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Problem Details

A 2,400-gram sample of an aqueous solution contains 0.012 gram of NH3. What is the concentration of NH3 in the solution, expressed as parts per million?

A) 15 ppm

B) 50 ppm

C) 20 ppm

D) 5.0 ppm

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