Answer 7-10 only Examine the impact of the following circumstance on the PURITY of the sample. Decide whether thesituation will INCREASE, DECREASE, HAVE NO EFFECT, or BE INDETERMINATE. EXPLAINTHE TREND IN THREE SENTENCES OR LESS IN THE "OTHER" Given Item IN THE OPTIONS1. The factor used in the computation of %P for calcium carbonate in complexometry is 2.2. In complexometric titration of calcium in the presence of magnesium, no masking agent wasapplied in the solution.I3. In the preparation and standardization of disodium edetate, mineral water was used.4. The standardization of disodium edetate was conducted in acidic media.5.Alcohol was not added in the standardization of Zinc Sulfate.6. Titration of halides using argentometry is conducted in the presence of sunlight.7.In the standardization of ammonium thiocyanate, 15 mL of 0.1 N silver nitrate VS was measuredinto a glass-stoppered flask, then titrated with ammonium thiocyanate.8. lodine flask was not used in iodometric titrations.9. Mohr method was conducted in slightly acidic condition.10. Acid-base indicator was used in replacement for the adsorption indicator In the titration of Falansmethod.Compute for the %purity Average%ourityBlank DeterminationVol of excess titrant30.00ml.

Iodometry is the type of titration which uses a standard sodium thiosulfate solution as the titrant.…

7. In the standardization of ammonium thiocyanate, 15 mL of 0.1 N silver nitrate VS was measured into a glass-stoppered flask, then titrated with ammonium thiocyanate. 8. lodine flask was not used in iodometric titrations. 9. Mohr method was conducted in slightly acidic condition. 10. Acid-base indicator was used in replacement for the adsorption indicator in the titration of Eaians method.

7. In the standardization of ammonium thiocyanate, 15 mL of 0.1 N silver nitrate VS was measured into a glass-stoppered flask, then titrated with ammonium thiocyanate. 8. lodine flask was not used in iodometric titrations. 9. Mohr method was conducted in slightly acidic condition. 10. Acid-base indicator was used in replacement for the adsorption indicator in the titration of Eaians method.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.5QAP

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