Question

What is the concentration of a solution with 10 grams of calcium in 1000 m³ of water?

a.

150 ppm

b.

250 ppm

c.

800 ppm

d.

1000 ppm

Answer: (b).250 ppm

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Q. What is the concentration of a solution with 10 grams of calcium in 1000 m³ of water?

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