Question

calculate the amount of NaCl dissolved per 100 cm³ needed to prepare 1000 ppm solution of Na+ ions.?​

Answer 1

Answer:

Explanation:

100 ppm of sodium in one liter would be 0.1 g of Na or 0.1 x 58.443 / 22.98 = 0.254 g of NaCl.

This may be tricky to weigh exactly and it would be better to weigh 2.54 g to make one liter at 1000 ppm of Na. When you have to use it, you dilute 10 times (take a 50 ml pipette and fill up to 500 ml with distilled water.)