Chemistry Chap 6
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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Solution | homogeneous mixture of 2 or more substances
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solute | the componment of solution that is present in lesser quantity
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solvent | the solution component present in the largest quantity
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Aqueous solution | solution where the solvent is water
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This can be liquid as well as solids and gases | Solutions
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Air | oxygen and several trace gases are dissolved in the gaseous solvent, nitrogen
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Alloys | brass and other homogeneous metal mixtures in the solid state
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What are the general properties of liquid solution | clear, transparent, no visible particle
May be colored or colorless
Electrolytes are formed from
Nonelectrolytes do not dissociate
Volumes of solute and solvent are not additive
solutes that are soluble ionic compounds
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Colloidal suspension | contains solute particles which are not uniformly distributed
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Colloidal Suspension properties | Due to larger size of particles (1nm - 200 nm)
Appears identical to solution from the naked eye
Smaller than 1 nm, have solution
Larger than 1 nm, have a precipitate
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Tyndall Effect | the ability of a colloidal suspension to scatter light
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Tyndall Effect examples | See a haze when shining light through the mixture
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Solutions: | light passes right through without scattering
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Light as haze, scatters light | colloidal suspension
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no haze | solution
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Solubility | - how much of a particular solute can dissolve in a certain solvent at a specified temperature
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Factors which affect solubility: | Polarity of solute and solvent
Temperature
Pressure
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Pressure | Usually has no effect
If solubility is of gas in liquid, directly proportional to applied pressure
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Temperature | Increase in temperature usually increases solubility
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Polarity of solute and solvent | The more different they are, the lower the solubility
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Saturated solution | - a solution that contains all the solute that can be dissolved at a particular temperature
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Supersaturated solution | - contains more solute than can be dissolved at the current temperature
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How is saturation done | Heat solvent, saturate it with solute then cool slowly
Sometimes the excess will precipitate out
If it doesn’t precipitate, the solution will be supersaturated
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Henry’s law | – the number of moles of a gas dissolved in a liquid at a given temperature is proportional to the partial pressure of the gas above the liquid
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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.
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