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 10.11 g sample of the vase was ground and reduced with Ph(Hg) to convert any WO, to W. The resulting w* was transferred to 500.0 ml. of 1.00 M HCI. A 100.00 ml. aliquot of the HCI solution required 13.18 ml of 0.08251 M potassium permanganate (KMNO,) to reach the purple endpoint. A blank required 0.15 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 10.11 g sample of the vase was ground and reduced with Ph(Hg) to convert any WO, to W. The resulting w* was transferred to 500.0 ml. of 1.00 M HCI. A 100.00 ml. aliquot of the HCI solution required 13.18 ml of 0.08251 M potassium permanganate (KMNO,) to reach the purple endpoint. A blank required 0.15 ml. Balance the redox reaction. redox reaction: MnO, + w* Mn+wo? Determine the percent wo, in the ceramic sample. percent WO,:

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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