Concept explainers
(a)
Interpretation:
Whether the statement, “The rate of crystallization when a solution is two-thirds saturated is higher than the rate of crystallization when a solution is one-third saturated” is true or false is to be stated.
Concept introduction:
Solution is a homogenous mixture of two or more components. A sample taken from any part of the solution will have the same composition as the rest of the solution. Many
(b)
Interpretation:
Whether the statement, “The solubility of a solid in liquid always increases with temperature” is true or false is to be stated.
Concept introduction:
Solution is a homogenous mixture of two or more components. A sample taken from any part of the solution will have the same composition as the rest of the solution. Many chemical reactions occur in water solutions.
(c)
Interpretation:
Whether the statement, “The solubility of a gas in a liquid increases as the partial pressure of that gas over the surface of the liquid increases” is true or false is to be stated.
Concept introduction:
Solution is a homogenous mixture of two or more components. A sample taken from any part of the solution will have the same composition as the rest of the solution. Many chemical reactions occur in water solutions.
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Introductory Chemistry: An Active Learning Approach
- What is the usual solubility behavior of an ionic compound in water when the temperature is raised? Give an example of an exception to this behavior.arrow_forwardRefer to Figure 13.10 ( Sec. 13-4b) to answer these questions. (a) Does a saturated solution occur when 65.0 g LiCl is present in 100 g H2O at 40 C? Explain your answer. (b) Consider a solution that contains 95.0 g LiCl in 100 g H2O at 40 C. Is the solution unsaturated, saturated, or supersaturated? Explain your answer. (c) Consider a solution that contains 50. g Li2SO4 in 200. g H2O at 50 C. Is this solution unsaturated, saturated, or supersaturated? Explain your answer. Figure 13.10 Solubility of ionic compounds versus temperature.arrow_forwardUsing the concept of hydration, describe the process of dissolving a sodium chloride crystal in water.arrow_forward
- Calculate the molality of a solution made by dissolving 115.0 g ethylene glycol, HOCH2CH2OH, in 500. mL water. The density of water at this temperature is 0.978 g/mL. Calculate the molarity of the solution.arrow_forwardWhen two beakers containing different concentrations of a solute in water are placed in a closed cabinet for a time, one beaker gains solvent and the other loses it, so that the concentrations of solute in the two beakers become equal. Explain what is happening.arrow_forwardRefer to Figure 13.10 ( Sec. 13-4b) to determine whether these situations would result in an unsaturated, saturated, or supersaturated solution. 120. g RbCl is added to 100. g H2O at 50 °C. 30. g KCl is dissolved in 100. g H2O at 70 °C. 20. g NaCl is dissolved in 50. g H2O at 60 °C. Figure 13.10 Solubility of ionic compounds versus temperature.arrow_forward
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