1.) A sample containing 0.175 g of Cl- is dissolved in 50 mL of deionized H20. The solution is titrated to the equivalence point with a AgNO3 solution. The final volume of the titrated sample is 75 ml. a) What is the concentration of the AgNO3 solution? b) How many grams of AgCl are precipitated? 2.) A student wishes to determine the mass percentage of barium in a 2.016 g sample. The student titrated the sample with 20 ml of 0.20 M H2SO4, producing a BaSO4 precipitate. a) How many moles of BaSO4 were formed in the titration? b) What was the mass of barium present in the original sample? c) What was the mass percent of barium in the original sample? 3) An unknown sample weighing 0.2583 g is titrated to the end point with 47.28 ml. of a 0.10 M AgNO3 solution. What is the weight percent of Cl- in the sample?
1.) A sample containing 0.175 g of Cl- is dissolved in 50 mL of deionized H20. The solution is titrated to the equivalence point with a AgNO3 solution. The final volume of the titrated sample is 75 ml. a) What is the concentration of the AgNO3 solution? b) How many grams of AgCl are precipitated? 2.) A student wishes to determine the mass percentage of barium in a 2.016 g sample. The student titrated the sample with 20 ml of 0.20 M H2SO4, producing a BaSO4 precipitate. a) How many moles of BaSO4 were formed in the titration? b) What was the mass of barium present in the original sample? c) What was the mass percent of barium in the original sample? 3) An unknown sample weighing 0.2583 g is titrated to the end point with 47.28 ml. of a 0.10 M AgNO3 solution. What is the weight percent of Cl- in the sample?
Chapter9: Acids, Bases, And Salts
Section: Chapter Questions
Problem 9.99E
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b) How many grams of AgCl are precipitated?
Prelaboratory Assignment: Analysis of an Unknown Chloride
1.) A sample containing 0.175 g of Cl- is dissolved in 50 mL of deionized H2O. The solution is
titrated to the equivalence point with a AgNO3 solution. The final volume of the titrated sample
is 75 mL
a) What is the concentration of the AgNO3 solution?
Section:
2.) A student wishes to determine the mass percentage of barium in a 2.016 g sample. The student
titrated the sample with 20 mL of 0.20 M H2SO4, producing a BaSO4 precipitate.
a) How many moles of BaSO4 were formed in the titration?
b) What was the mass of barium present in the original sample?
c) What was the mass percent of barium in the original sample?
3) An unknown sample weighing 0.2583 g is titrated to the end point with 47.28 mL of a 0.10 M
AgNO3 solution. What is the weight percent of Cl- in the sample?
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