Answer to Question #80228 in General Chemistry for Ali

Question

Starting with solid sodium chloride, how would you make one liter of 2.000 ppm sodium chloride solution? [Hint: 1ppm = 1g (solute ) /10^6 g (solution) (for dilute aqueous solutions 1 ppm = 1 mg (solute) / 1 L solution). ]

Answer 1

2.000 ppm = 2 mg (solute) / 1 L (solution), because for dilute aqueous solutions
1 ppm = 1 mg (solute) / 1 L (solution).
Therefore, we can add 2 mg of salt and melt to 1 liter of water.