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TWHS Solutions

Solutions

QuestionAnswer
What affects rate of solvation? increase temperature of solvent, increase surface area (decrease particle size), agitate (stir)
How does pressure affect solubility of a gas in a liquid? Increased pressure increases the solubility of a gas. (soda can is pressurized to keep gas in solution)
electrolyte ionic compounds which dissociate in water to form solutions that conduct electricity; ionizes
miscible two LIQUIDS that are soluble in each other
immiscible two LIQUIDS that are NOT soluble in each other
What makes water a good solvent? It is polar.
Will water dissolve ionic compounds? Yes
like dissolves like means polar dissolves polar; nonpolar dissolves nonpolar
How does temperature affect the solubility of a gas in a liquid? As temperature increases the solubility of a gas decreases, particles are moving around too much to say in solution.
Why do electrolytes conduct electricity? The compound dissociates into ions.
Saturated solution a solution that holds the maximum amount of solvent; disoociation and crystallization are in equilibrium
Unsaturated solution a solution that holds less than the maximum amount of solute; more solute can be added
Supersaturated solution a solution that holds more than the maximum amount of solute
What is the difference between tap water and distilled water? Tap water has dissolved minerals, distilled water does not
Soluble solute can dissolve in solvent
Insoluble solute cannot dissolve in solvent
Salt is dissolved in water. Compare the attraction between the sodium and chloride and between the water and sodium and chloride ions The attraction between the water and the sodium and chloride ions is stronger than the attraction between the sodium and chloride ions that is why salt dissolves in water.
What is the molarity of a solution in which 58g of NaCl are dissolved in 1.0L of solution? .99 mol/L
How many grams of KNO3 should be used to prepare 2.00 L of a 0.500 M solution? 101 g KNO3
To what volume should 5.0g of KCl be diluted in order to prepare a 0.25 M solution. 0.27 L
If 100 mL of 18M sulfuric acid is diluted to 250 mL, what is the new concentration? 7 M
To what volume should 25 mL of 15 M nitric acid be diluted to prepare a 3.0 M solution? .13 L
Be able to read a solubility graph. Analyze the graph, determine type of solution
solvent one doing the dissolving; greater portion
solute one being dissolved; smaller portion
dissociation separation of ions; splitting apart
solvation surrounding solute particles by solvent particles
hydration solvation where water is the solvent
How would an increase in temperature affect the solubility of a liquid? In general, the solubility would increase.
How would an increase in temperature affect the solubility of a gas? the solubility would decrease.
strong electrolyte ions dissociate completely
weak electrolyte ions partially dissociate
nonelectrolyte compounds that dissolve in solution but do not conduct electricity
Created by: dshepard