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(e) (f) An analysis is performed by the Volhard method in which a 50.00 mL portion of a sample thought to contain bromid
Posted: Mon Jul 11, 2022 1:17 pm
by answerhappygod
- E F An Analysis Is Performed By The Volhard Method In Which A 50 00 Ml Portion Of A Sample Thought To Contain Bromid 1 (100.81 KiB) Viewed 25 times
(e) (f) An analysis is performed by the Volhard method in which a 50.00 mL portion of a sample thought to contain bromide is treated with 10.00 mL of 0.1065 M AgNO3 and allowed to form a precipitate. The excess Ag* that remains in solution is then titrated with a 0.09875 M of potassium thiocyanate, giving an end point at 8.76 mL. What was the concentration (M) of bromide in the original sample if we assume no other anions were present that could form a precipitate with Ag+? (5 marks) Calcium in powdered milk is determine by ashing a 1.50 g o thes ample and then titrating the calcium with 6.30 mL EDTA solution. EDTA was standardized by titrating 10 mL of a CaCO3 solution prepared by dissolving 2.0019 g CaCO3 in acid and diluted to 1 L (10.80 mL EDTA required for titration). Calculate the concentration of calcium in powdered milk in mg/L. (Ca 40.08 g/mol, CaCO3 100.08 g/mol) (4 marks)