Question

f 23.2 grams of an aqueous solution of nickel(II) iodide, NiI2, contains 5.47 grams of nickel(II) iodide, what is the percentage by mass of nickel(II) iodide in the solution?

Answer 1

the percentage by mass of Nickel(II) iodide = 23.58%

Step-by-step explanation:

% by mass of solute = (mass of solute/mass of solution) x 100%

% by mass of NiI2 = (mass of NiI2/mass of solution) x 100%

% by mass of NiI2 = (5.47 grams/23.2 grams) x 100% = 23.58% m/m