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17 Cards in this Set
- Front
- Back
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miscible or immiscible:
water and vinegar |
miscible
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miscible or immiscible:
water and oil |
immiscible
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Which of these tends to decrease the rate of solubility as it increases?
a) surface area b) concentration c) agitation d) temperature |
b) concentration
(the others tend to increase the rate of solubility as they increase) |
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what's the molarity formula
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M= moles solute/ L solution
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a beam of light will scatter in a __________. this is called the _______ effect
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colloidal dispersion; Tyndall effect
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What are the 4 colligative properties (meaning what effects do more particles of solute have?)
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1. Vapor pressure reduction
2. Freezing point depression 3. boiling point elevation 4. osmotic pressure |
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______'s Law:
when a non-volatile solute is added to a solvent, the vapor pressure _______ in proportion to the concentration of the solute |
Raoult; decreases
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Which two colligative properties decrease as more solute is added?
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Vapor pressure
Freezing point |
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Which two colligative properties increase as more solute is added?
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boiling point
osmotic pressure |
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Formula for *molality*
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m=mol/kg
note the little m |
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measure of the molarity times the number of particles (as in, NaCl has 2 particles when dissolved)
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osmolarity
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What is the osmolarity of 0.3 M of MgCl2?
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0.9 OsM
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What is the osmolarity of 0.3 M of glucose?
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0.3 OsM
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0.9% (w/v) saline and 5% (w/v) glucose are both ______ to red blood cells because the solutions have the roughly the same ________
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osmolarity
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Crenation occurs when cells are surrounded by a _________ solution
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hypertonic
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m/v percentage uses __ for mass and __ for volume
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g; mL
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grams of water must be added to 10.0 g of Ca(NO3)2 in order to prepare a 25.0% (m/m) solution?
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30g (remember you are dividing mass of solute by *total mass* of solution)
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