Gravimetric Determination of Sulfate Ion W rite a balanced equation for the reac
ID: 826908 • Letter: G
Question
Gravimetric Determination of Sulfate Ion W rite a balanced equation for the reaction used in the gravimetric analysis part of this experiment. What must be done with the solid barium sulfate waste? 10.00 mL of approximately 6 M sulfuric acid is transferred to a 100-mL volumetric flask and diluted to the mark with distilled water and mixed. Then 10.00 mL of this solution is diluted further to 100 mL. What is The molarity of this last solution? 10.00 mL of the final acid solution is reacted with excess barium chloride to produce a precipitate of barium sulfate (FW - 233.4 g/mol). The dry solid weighs 0.397 g. Use this mass and the dilution volumes to calculate the actual molarity of the sulfuric acid in the initial solution.Explanation / Answer
CHEM 2115
Experiment Two
Gravimetric Determination of Sulfate in Seawater
Objective
The concentration of sulfate ion in seawater will be determined gravimetrically by
precipitation with barium chloride.
Text Reference:
Rubinson and Rubinson, Contemporary Chemical Analysis, Chapter 10.
Introduction
When a solution containing sulfate ion is mixed with one containing barium ion,
sparingly soluble barium sulfate precipitates. The reaction may be written as
4
2 2
4 SO - + Ba +
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.