2. Use the flow chart to answer the following questions (A-E). A. Which non-water-soluble compound produces bubbles of gas is added? when vinegar B. Which two water-soluble compounds produce bubbles of gas when vinegar is added? C. Carefully examine the chemical formulas of the three compounds you just named above. What anion(s) do these compounds contain? Be sure to include the correct charge on the anion. D. Suppose that you are working with a water-soluble unknown which does not produce a bright pink colored solution when phenolphthalein is added and does not give a solu precipitate when added to 1.0 M NaOH. Based on this result, which of the unknowns might you have? (list all possible identities) E. After getting the results of this NaOH test (no precipitate; part D), which test should you perform next to narrow down the list of possible identities for your unknown? 3. It is very important not to use too much of the unknown compound when carrying out the water-solubility test. Suppose you are working with an unknown that is actually soluble in water: you take a sample of the unknown that is too large (larger than the amount specified in the experimental procedure) and add some water. What do you think will happen?

2. Use the flow chart to answer the following questions (A-E). A. Which non-water-soluble compound produces bubbles of gas is added? when vinegar B. Which two water-soluble compounds produce bubbles of gas when vinegar is added? C. Carefully examine the chemical formulas of the three compounds you just named above. What anion(s) do these compounds contain? Be sure to include the correct charge on the anion. D. Suppose that you are working with a water-soluble unknown which does not produce a bright pink colored solution when phenolphthalein is added and does not give a solu precipitate when added to 1.0 M NaOH. Based on this result, which of the unknowns might you have? (list all possible identities) E. After getting the results of this NaOH test (no precipitate; part D), which test should you perform next to narrow down the list of possible identities for your unknown? 3. It is very important not to use too much of the unknown compound when carrying out the water-solubility test. Suppose you are working with an unknown that is actually soluble in water: you take a sample of the unknown that is too large (larger than the amount specified in the experimental procedure) and add some water. What do you think will happen?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter12: Chemical Equilibrium

Section12.1: Characteristics Of Chemical Equilibrium

Problem 12.1E: The introduction to this chapter states that at a given temperature the concentration of a pure...

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