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2.5 g sample of bronze was dissolved in sulphuric acid to form CuSO4. To this solution excess KI was added to form CuI and I−3. The I−3 formed required 31.5 ml of 1.0 M sodium thiosulphote solution for completing titration. Determine the mass percentage of Cu in the Bronze sample (Cu: 63.5 I: 126.9) |
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Answer» 2.5 g sample of bronze was dissolved in sulphuric acid to form CuSO4. To this solution excess KI was added to form CuI and I−3. The I−3 formed required 31.5 ml of 1.0 M sodium thiosulphote solution for completing titration. Determine the mass percentage of Cu in the Bronze sample (Cu: 63.5 I: 126.9) |
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