2. A solution may contain any of the three group I cations. A white precipitate is formed the addition of HCI. This precipitate is partially soluble in hot water and any residue dissolve upon the addition of NH,OH. Which group I ions are present? Which are absent? Which are in doubt? How would you remove all doubt? upon

2. A solution may contain any of the three group I cations. A white precipitate is formed the addition of HCI. This precipitate is partially soluble in hot water and any residue dissolve upon the addition of NH,OH. Which group I ions are present? Which are absent? Which are in doubt? How would you remove all doubt? upon

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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Which of the following statements is true with respect to the solubility of ionic compounds? A) Carbonate containing compounds are soluble, except for those containing group I elements, which are insoluble O B) All compounds that contain chloride, bromide, or iodide anions are soluble C) Silver nitrate is an insoluble compound D) Although most sulfate-containing compounds are soluble, barium sulfate is not E) Silver chloride is a soluble compound
SIMPLE REACTIONS Shamma V Determining the volume of base neede... A chem student weighs out 0.0999 g of acetic acid (HCH,CO,) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1100 M NAOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits. ||mL O ml. x10 dlo 18 Ar Explanation Check O 2021 Mcolaw- LUutatioI. All RightS RESEIVEU. Privacy Accessibility
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Ammonium sulfate is added to an unknown mixture of ions. A precipitate forms. The solution is centrifuged, and the remaining solutions is decanted. Ammonium oxalate is then added to the solution and a precipitate forms. The solution is centrifuged, and the remaining solution is decanted. Sodium monohydrogen phosphate and sodium hydroxide are added to the decanted solution, and a precipitate forms. The precipitate is centrifuged and decanted. The solid is dissolved in acid, magnesium indicator is added, then sodium hydroxide is added until the solution turns cloudy blue, which settles when centrifuged. Sodium hydroxide is added to a fresh sample of the unknown. A damp piece of litmus paper over the opening of the test tube remains red. Select the ions present. Question 3 options: Ba2+ Ca2+ Mg2+ NH41+
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