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Chemistry / Chemistry: The Central Science 12 / Chapter 17 / Problem 9E

Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

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Visualizing ConceptsThe following graphs represent the

Chapter 10, Problem 9E

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QUESTION:

The following graphs represent the behavior of BaCO3 under different circumstances. In each case the vertical axis indicates the solubility of the BaCO3 and the horizontal axis represents the concentration of some other reagent.(a)Which graph represents what happens to the solubility of BaCO3 as HNO3 is added? (b) Which graph represents what happens to the BaCO3 solubility as Na2CO3 is added? (c) Which represents what happens to the BaCO3 solubility as NaNO3 is added? [Section 17.5]

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QUESTION:

The following graphs represent the behavior of BaCO3 under different circumstances. In each case the vertical axis indicates the solubility of the BaCO3 and the horizontal axis represents the concentration of some other reagent.(a)Which graph represents what happens to the solubility of BaCO3 as HNO3 is added? (b) Which graph represents what happens to the BaCO3 solubility as Na2CO3 is added? (c) Which represents what happens to the BaCO3 solubility as NaNO3 is added? [Section 17.5]

ANSWER:

Problem 9E

Visualizing Concepts

The following graphs represent the behavior of under different circumstances. In each case, the vertical axis indicates the solubility of the and the horizontal axis represents the concentration of some other reagent (a) Which graph represents what happens to the solubility of as is added? (b) Which graph represents what happens to the solubility as is added? (c) Which represents what happens to the solubility as is added? [Section]

Step by Step Solution

Step 1 of 3

The dissolution reaction of Baco, is as follows:

The solubility of the decreases in presence of a common reagent is a strong conjugate base of the weak acid Hence, in presence of an acid, converts into , Hence, equilibrium shifts to the right. That means in presence of an acid, the solubility of , increases. If the concentrations of the other species have no effect on the equilibrium then the solubility remains constant

(a)

As the concentration of (acid) increases the solubility of increases. Hence, the graph which represents this behavior is as follows:

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