A 0.4672 g sample of pewter (containing tin, lead, copper, and zinc) was dissolved in acid....

A 0.4672 g sample of pewter (containing tin, lead, copper, and zinc) was dissolved in acid. The precipitate SnO2

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queen_honey_blossom answered 1 year ago

A 0.4423 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid....

A 0.4423 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO2·4H2O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 200.0 mL. A 15.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 35.87 mL of 0.001481 M EDTA. Thiosulfate was used to mask the copper in a second 20.00 mL aliquot. Titration of...

A 0.4640 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid....

A 0.4640 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO2·4H2O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 200.0 mL. A 15.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 34.88 mL of 0.001523 M EDTA. Thiosulfate was used to mask the copper in a second 20.00 mL aliquot. Titration of...

A 0.4809 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid....

A 0.4809 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO2·4H2O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 200.0 mL. A 20.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 34.79 mL of 0.001492 M EDTA. Thiosulfate was used to mask the copper in a second 25.00 mL aliquot. Titration of...

A 0.4775 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid....

A 0.4775 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO2·4H2O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 200.0 mL. A 20.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 35.98 mL of 0.001455 M EDTA. Thiosulfate was used to mask the copper in a second 25.00 mL aliquot. Titration of...

A 0.4569 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid....

A 0.4569 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO2·4H2O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 250.0 mL. A 20.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 34.02 mL of 0.001513 M EDTA. Thiosulfate was used to mask the copper in a second 25.00 mL aliquot. Titration of...

A 0.4713 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid....

A 0.4713 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO2·4H2O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 250.0 mL. A 15.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 35.63 mL of 0.001504 M EDTA. Thiosulfate was used to mask the copper in a second 20.00 mL aliquot. Titration of...

A 0.4592 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid....

A 0.4592 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO 2 ⋅ 4 H 2 O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 200.0 mL. A 15.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 34.07 mL of 0.001476 M EDTA . Thiosulfate was used to mask the copper in...

A 0.4485 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid....

A 0.4485 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO2·4H2O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 250.0 mL. A 15.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 34.07 mL of 0.001534 M EDTA. Thiosulfate was used to mask the copper in a second 20.00 mL aliquot. Titration of...

A sample of a copper ore with a mass of 0.4225 g was dissolved in acid....

A sample of a copper ore with a mass of 0.4225 g was dissolved in acid. A solution of potassium iodide was added, which caused the reaction: 2Cu2+(aq) + 5I

For an alloy that consists of 74.9 g copper, 108.0 g zinc, and 7.3 g lead,...

For an alloy that consists of 74.9 g copper, 108.0 g zinc, and 7.3 g lead, what are the concentrations of (a) Cu, (b) Zn, and (c) Pb in weight percent? The atomic weights of Cu, Zn, and Pb are 63.54, 65.39, and 207.2 g/mol, respectively.

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