Question

What is the concentration of a solution, in parts per million, if 0.02 gram of Na3PO4 is dissolved in 1000 grams of water?
(1) 20 ppm     (2) 2 ppm   (3) 0.2 ppm  (4) 0.02 ppm​

Answer 1

Answer:no i

Explanation:

Answer 2

The concentration of a solution, in parts per million, if 0.02 gram of $Na_3PO_4$  is dissolved in 1000 grams of water is 20 ppm

Explanation:

Concentration in ppm =$\frac{\text {mass of solute}}{\text {mass of solution}}\times 10^6$

Given ; mass of solute $Na_3PO_4$ = 0.02 g

mass of solution = mass of solute $Na_3PO_4$ + mass of solution $(H_2O)$   = 0.02 g + 1000 g = 1000.02 g

Putting in the values;

Concentration in ppm =$\frac{0.02g}{1000.02g}\times 10^6=20ppm$

Thus the concentration of a solution, in parts per million, if 0.02 gram of $Na_3PO_4$  is dissolved in 1000 grams of water is 20 ppm

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