Nitrogen of ammonia can be determined by treatment of the sample with chloroplatinic acid; the product is slightly soluble ammonium chloroplatinate: H₂PtCl 6 + 2NH4+ → (NH4)2PtCl6 + 2H+ The precipitate decomposes on ignition, yielding metallic platinum and gaseous products: (NH4)2PtCl6 3 → Pt(s) + 2Cl₂(g) + 2NH3(g)↑ + 2HCl(g)↑ Calculate the percentage of ammonia in a sample if 0.2115 g of the impure sample gave rise to 0.4693 g of platinum. Given: M(NH3) = 17.0306 g/mol; M(Pt) = 195.08 g/mol. O O b. 14.25% O O d. 82.38% a. 56.52% c. 38.74%

Nitrogen of ammonia can be determined by treatment of the sample with chloroplatinic acid; the product is slightly soluble ammonium chloroplatinate: H₂PtCl 6 + 2NH4+ → (NH4)2PtCl6 + 2H+ The precipitate decomposes on ignition, yielding metallic platinum and gaseous products: (NH4)2PtCl6 3 → Pt(s) + 2Cl₂(g) + 2NH3(g)↑ + 2HCl(g)↑ Calculate the percentage of ammonia in a sample if 0.2115 g of the impure sample gave rise to 0.4693 g of platinum. Given: M(NH3) = 17.0306 g/mol; M(Pt) = 195.08 g/mol. O O b. 14.25% O O d. 82.38% a. 56.52% c. 38.74%

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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