Apologia Chemistry Module 11
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Solute | The substance being dissolved
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| Solvent | What the solute is being dissolved in
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| Solution | What you have when the solute and solvent are mixed together
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| Insoluble | Does not dissolve in water
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| In order to dissolve a solid, the solvent molecules .... | must be attracted to the solute molecules so strongly that the solvent molecules can get between the solute molecules (or ions) and pull them far apart from each other
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| In order to dissolve a liquid, the solvent molecules ..... | need only be attracted to the solute molecules a little, because the solvent doesn't need to separate the solute very much
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| In order to dissolve a gas, the solvent molecules .... | must be attracted to the solute molecules enough to pull the solute molecules closet to one another
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| Solubility | The maximum amount of solute that can dissolve in a given amount of solvent
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| The solubility of any solute depends upon ... | the identity of the solute AND the identity of the solvent
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| Saturated solution | A solution in which the maximum amount of solute has been dissolved
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| Precipitation | The process by which a solid solute leaves a solution and turns back into its solid phase
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| For solid solutes, solubility _______ with increasing temperature | usually increases
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| The solubility of liquid solute (is, is not) affected by temperature | is not
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| The solubility of gases _______ with increasing temperature | decreases
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| Increasing pressure _______ the solubility of gases | increases
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| Pressure (does, does not) affect the solubility of either liquids or solids | does not
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| Exothermic process | A process that RELEASES heat
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| Endothermic process | A process that ABSORBS heat
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| Molality | The number of moles of solute per kilogram of solvent
m =
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| Molarity uses _______________ while molality uses ___________________. | total volume of solution
amount of solvent in kg
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| Freezing point depression | When a solute is dissolved in a solvent, the solution always has a LOWER freezing point than the pure solvent
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| Freezing point depression formula | ∆T = -iK(f)m
T = temperature (°C)
i =
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| Boiling point elevation | When a solute is dissolved in a solvent, the boiling point of the solution is HIGHER than that of the pure solvent
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| Boiling point elevation formula: | ∆T = iK(b)m
T = temperature (°C)
i =
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
thomas.macri
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