suppose you want to analyze the amount of ag+ ion in water. one of the ways to d

Question

suppose you want to analyze the amount of ag+ ion in water. one of the ways to do that is by adding a salt into the water sample that may lead to the formation of a precipitation. based on your knowledge of solubility, decide what salt solution you should use. nacl, nano3, or na2so4. write the balanced ionic equation for the reaction. If the concentration of the ag+ ion is .05 mg/L, what volume of salt solution would you need to add in order to make ag+ ion precipitate out of 1 L sollution. Assume concentration salt solution is .5 molar

Explanation / Answer

NaCl solution should be used. AgCl formed during the course of the reaction has the highest Ksp value . It is thus least solution in water and will easily precipitate out from water.

Ag+ + Cl- -----> AgCl

1 mole Ag+ reacts with 1 moles of Cl- solution.

strength of Ag+ solution * volume of Ag+ solution = strength of Cl- solution * volume of Cl- solution

strength of Cl- solution = (0.05mg/L * 1L) / 0.5* 35.5*1000mg/L = 2.816 L

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.