An aqueous solution of sodium iodide, , contains 5.80 grams of sodium iodide and 17.3 grams of water. What is the weight/weight percent of sodium iodide in the solution? Weight/weight percent = %

Question

An aqueous solution of sodium iodide, , contains 5.80 grams of sodium iodide and 17.3 grams of water. What is the weight/weight percent of sodium iodide in the solution?

Weight/weight percent = %

Answer 1

Sodium iodide = NaI

Total mass of the solution = 5.80 g NaI + 17.3 g H2O = 23.1 g

Weight/weight % NaI = mass NaI / total mass of solution (x100%

Weight/weight % NaI = 5.80 g / 23.1 g (x100%)

Weight/weight % NaI = 25.1%