A0.7011-g mixture of sodium chloride and sodium nitrate is completely dissolved in water. when silver nitrate is added to the solution, 0.9805 g of solid precipitate. what is the percent by mass of chloride in the initial mixture?

34.59 %

Explanation:

Sodium chloride dissolves in water as follows:

Chloride ions are then precipitated with silver ions:

Now we use the give mass of AgCl to calculate the moles of Cl:

mol AgCl = mol Cl

Finally we calculate the mass percent of Cl in the initial mixture:

its first and third is your answer i did the qustion the fourth isnt right