14. Tungsten trioxide (WO,) has a rich yellow color and is often used as a pigment in ceramics and paints. To test a ceramic vase forits Wo, content, a 10.05 g sample of the vase was ground and reduced with Pb(Hg) to convert any Wo, to W. The resultingw* was transferred to 500.0 mL of 1.00 M HCI, A 100.00 mL aliquot of the HCI solution required 14.55 mL of 0.09416 Mpotassium permanganate (KMNO,) to reach the purple endpoint. A blank required 0.27 mL.Balance the redox reaction.redox reaction: MnO, + W+- Mn?+ + Wo?Determine the percent WO, in the ceramic sample.percent WO,:

We have find out the percentage of WO3 in ceramic sample.

Tungsten trioxide (WO,) has a rich yellow color and is often used as a pigment in ceramics and paints. To test a ceramic vase for its Wo, content, a 10.05 g sample of the vase was ground and reduced with Pb(Hg) to convert any Wo, to W. The resulting w* was transferred to 500.0 mL of 1.00 M HC1. A 100.00 mL aliquot of the HCI solution required 14.55 mL of 0.09416 M potassium permanganate (KMNO,) to reach the purple endpoint. A blank required 0.27 mL. Balance the redox reaction. redox reaction: MnO, + W+ - Mn?+ + Wo?* Determine the percent WO, in the ceramic sample. percent WO,:

Tungsten trioxide (WO,) has a rich yellow color and is often used as a pigment in ceramics and paints. To test a ceramic vase for its Wo, content, a 10.05 g sample of the vase was ground and reduced with Pb(Hg) to convert any Wo, to W. The resulting w* was transferred to 500.0 mL of 1.00 M HC1. A 100.00 mL aliquot of the HCI solution required 14.55 mL of 0.09416 M potassium permanganate (KMNO,) to reach the purple endpoint. A blank required 0.27 mL. Balance the redox reaction. redox reaction: MnO, + W+ - Mn?+ + Wo?* Determine the percent WO, in the ceramic sample. percent WO,:

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 39P

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