The unknown sample solution will contain between 40% and 70% soluble chloride io
ID: 475527 • Letter: T
Question
The unknown sample solution will contain between 40% and 70% soluble chloride ion. Assuming a mass of about 0.2 of unknown sample and about 0.2 M silver nitrate precipitating agent, ESTIMATE the volume of silver nitrate solution that should be added to ensure COMPLETE reaction of the chloride. The unknown sample solution will contain between 40% and 70% soluble chloride ion. Assuming a mass of about 0.2 of unknown sample and about 0.2 M silver nitrate precipitating agent, ESTIMATE the volume of silver nitrate solution that should be added to ensure COMPLETE reaction of the chloride.Explanation / Answer
Reaction with AgNO3
AgNO3 + Cl- ---------- AgCl + NO3-
Maximum mass of chloride ion = 70/100 * 0.2 = 0.14 grams
Number of moles of Cl- = 0.14/35.5 = 0.003943 moles
Number of moles of AgNO3 = 0.003943 moles
Number of moles of AgNO3 = Volume of solution(mL)/1000 * Molarity
0.003943 = V/1000 * 0.20
V = 19.7183 mL
Hence the volume of silver nitrate solution required will be equal to 19.7183 mL
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.