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A: Please find the below attachment. Thank you.
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How does the doubly labeled water method depend on the existence of isotopic equilibrium between the oxygen in H2O and that in CO2?
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- Why is it essential that some undissolved Ca(IO3)2 remain in the solution to be measured?What is the role of cobalt glass for the flame test of potassium? Explain. Why was the flame test used for the qualitative determination of K and Na? Why was the sample being made alkaline with 3M KOH and heated for the qualitative test for NH4+?1. How is complete precipitation assured in the Group III Cations? 2. In the confirmatory test of Magnesium ion, why is it necessary to heat the centrifugate in water bath for 5 minutes? 3. If Magnesium hydroxide is a white gelatinous precipitate, why is the confirmatory result indicated a blue precipitate?
- To determine the percent purity of a sample containing iron(II) ammonium sulfate; Suggest , 2 different methods for iron(II) ion. Explain in detail what errors may occur in the methods. (volhard method, gravimetric analysis, kjeldahl, etc.) Percentage content: 1-100% ; the solution concentrations to be used are 0.01-0.1M; Take the volumes of solution to be used between 1-50 mLWhat is the solubility of Cr(OH)3 in g/l at pH 9.55? Ksp for Cr(OH)3 = 6.30 x 10-31?What is the purpose of adding CaCO3 or NaHCO3 in the Mohr Method determination of chloride?
- Write the chemical equation for the addition of MnSO4 and alkali-iodide-sodium azide in the water sample and identify the chemical identity of the white precipitate formed after the addition.Why is Mg2+ Most likely to give a precipitate with PO43- explain the answerIn gravimetric determination of phosporus, 0.2161 g Mg2P2O4 was obtained after preciptation of 0.3516 g detergent sample. Calculate the percentage of the phosporus.