Question

EBTA TItration Q3. A 1. volumetric flask. A 50.00-ml aliquot of the diluted solution was brought to a pH of 10.0 with a NH NH buffer; the subsequent titration involved both cations and required 28.89 ml of 0.06950 M EDTA. A secand 50.00-mL aliquot was brought to a pH of 10.0 with an HCN/NaCN buffer, which also served to mask the Cd? 11.56 mL of the EDTA solution were needed to titrate the Pb*, Calculate the percent Pb and Cd in the sample. 509 gram sample of a Pb/Cd alloy was dissolved in acid and diluted to exactly 250.0 mL in a

Answer 1

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