Which of the followingare correct equivalent values? For any solutions specified

Question

Which of the followingare correct equivalent values? For any solutions specified,assume they have the density of water.
a) 0.050 mg/L = 50 ppm b) 3.0 ppm = 3.0 g solute / 106 gsolution c) 25 g/L = a weight percent of 0.25 d) 25 ppm = 2.5 × 105 g solute/ 1 g solution e) 3.0 ppm = 3.0 mg solute / kg solution Which of the followingare correct equivalent values? For any solutions specified,assume they have the density of water.
a) 0.050 mg/L = 50 ppm b) 3.0 ppm = 3.0 g solute / 106 gsolution c) 25 g/L = a weight percent of 0.25 d) 25 ppm = 2.5 × 105 g solute/ 1 g solution e) 3.0 ppm = 3.0 mg solute / kg solution

Explanation / Answer

By the definition , 1mg/litre = 1 ppm also 1gram presentin 10 6 parts a) 0.050 mg/L = 0.050 ppm b) 3.0 ppm = 3.0 g solute / 106 gsolution c) 25 g/L = a weight percent of 0.25 1 g present in 100 ml is 100% So 25g present in 1000ml is 25 % So the Wt. persent is 25/100 =0.25 d) 25 ppm = 2.5 × 105 g solute/ 1 g solution                    25ppm=25 mg /1000mg                               =0.025g/10g                               =0.0025g/ 1g                              e) 3.0 ppm = 3.0 mg solute / kg solution e) 3.0 ppm = 3.0 mg solute / kg solution

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