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Sagot :
In ppm the concentration of NH2- ions is 5.6 ppm.
We have 1 L sample of water contains 0.0056 g of NH2- ions.
We have to determine the concentration of NH2- ions in ppm.
What is PPM ?
PPM is a term used in chemistry to denote a very, very low concentration of a solution.
According to the question -
Mass of the aqueous solution of NH2- ions → density x volume →
1 L x 1000 mL x 1 g/mL = 1000g
Now, the ratio of chloride ion mass to the solution mass will give the concentration of NH2- ions →
[tex]$c= \frac{0.0056}{1000}[/tex]
Now, in order to express the concentration in parts per million -
[tex]$c= \frac{0.0056}{0.001 \times 10^{6} } = \frac{5.6}{10^{6} }[/tex]
Now -
c = 5.6 g of NH2- ions per 1 million grams of solution which is equal to concentration in ppm.
Hence, in ppm the concentration of NH2- ions is 5.6 ppm.
To solve more questions on PPM concentration, visit the link below-
https://brainly.com/question/8734464
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