kingwilson6672 kingwilson6672
  • 03-08-2018
  • Chemistry
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A 2.00−L sample of water contains 150.0 μg of lead. Calculate the concentration of lead in ppm.

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Chlidonias
Chlidonias Chlidonias
  • 03-08-2018

Given the volume of water sample = 2.00 L

Mass of lead = 150.0 μg

When we say that a solution is 1 ppm in concentration, it means that there is one part of solute per million parts of the solution.

One ppm = 1 mg solute/L solution

The concentration of lead in ppm:

150.0 μg ×[tex] \frac{1 mg}{1000 μg} [/tex] × [tex] \frac{1}{2.00 L} [/tex]

= 0.075 ppm

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