12 Questions
What happens to the solubility of a solid that absorbs heat when dissolved as temperature increases?
Increases
In an exothermic solution process, what happens to the solubility of a compound as the temperature rises?
Decreases
What happens to the solubility of Na2SO4.10H2O as the temperature exceeds 32°C?
Decreases
What type of reaction occurs when sodium chloride dissolves in water?
Isothermic
Which compound exists as an anhydrous salt above a certain temperature point?
Sodium sulfate
If a solid belongs to the class of compounds that absorb heat when they dissolve, what can be said about its solubility?
Solubility increases with temperature
What happens to the solubility of phenobarbital sodium as the pH is lowered below 9.3?
It decreases
How do weak bases react with dilute acids?
Decrease the pH
How do weak acids react with dilute alkalis?
Form water-soluble salts
According to the Henderson-Hasselbach equation, what happens to the pH of a system when the concentration of the molecular acid increases?
pH decreases
What is the relationship between pH and pKa when the concentrations of salt and acid are equal?
pH = pKa
How can maximum therapeutic effectiveness be achieved in drug preparations according to the text?
By adjusting preparations to an optimum pH
Learn about how temperature impacts the solubility of salts in water. Understand the relationship between temperature changes and the solubility of different salts, whether the process is endothermic or exothermic.
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