Formula mass: K2CO3, 138.21; KHCO3, 100.12; K, 39.10; C, 12.01; O, 16.00; and H, 1.01 A 2.126 g sample of a solid mixture containing only K2CO3 and KHCO3 is dissolved in water. A volume of 32.50 mL of 0.753 M HCl standard solution is required to titrate the mixture to a bromocresol green end point. Calculate the weight percent of potassium in the mixure.
Formula mass: K2CO3, 138.21; KHCO3, 100.12; K, 39.10; C, 12.01; O, 16.00; and H, 1.01 A 2.126 g sample of a solid mixture containing only K2CO3 and KHCO3 is dissolved in water. A volume of 32.50 mL of 0.753 M HCl standard solution is required to titrate the mixture to a bromocresol green end point. Calculate the weight percent of potassium in the mixure.
Chemistry by OpenStax (2015-05-04)
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ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
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Chapter19: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 14E: A 2.5624-g sample of a pure solid alkali metal chloride is dissolved in water and treated with...
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Formula mass: K2CO3, 138.21; KHCO3, 100.12; K, 39.10; C, 12.01; O, 16.00; and H, 1.01
A 2.126 g sample of a solid mixture containing only K2CO3 and KHCO3 is dissolved in water. A volume of 32.50 mL of 0.753 M HCl standard solution is required to titrate the mixture to a bromocresol green end point. Calculate the weight percent of potassium in the mixure.
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