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63 Cards in this Set
- Front
- Back
heat involved in the solution process
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heat of solution
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whose law says that pressure and gas solubility are directly proportional
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Henry's Law
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the universal solvent
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H2O
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gases have a __________(positive,negative)heat os solution
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negative
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because water has a high__________, it holds its temperature real well
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answer on test chapter 13& 14 was incorrect unsure of answer
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the rapid escape of a gas from the liquid in which it was dissolved
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effervescence
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the breaking up of a substance into its ions
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dissociation???????check answer on test
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if you increase the pressure on a liquid, you(increase, decrease the boiling point)
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increase
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whose law says that vapor pressure depends on the amount of solute it has
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Ruoult's Law
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Water that is associated with a solid in its crystal formation
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water of hydration
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Loss of water from a crystal when it is exposed to air
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Efflorescence
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Describe a crystal that has lost its water
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anhydrous
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Continuous random movement of colloidal particles
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Brownian Motion
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Hygroscopic substance used a drying agent in packaged medicine, electronics, shoes
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dexiccant
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An example of a hygroscopic substance used as a drying agent in packaged medicine, electronis, shoes
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Answer incorrect/ need correct answer
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Dissolving medium
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solvent
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Substance being dissolved
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solute
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Two liquids that are mutaually soluble are said to be
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miscible
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Homogeneous mixture
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solution
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Substance whose water solution conducts electricity
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electrolyte
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Capable of being dissolved
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soluble
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amount of heat absorbed or given off when a solute dissolves in a specific amount of solvent
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heat of solution
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Mixtures of metals
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alloy
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Heterogeneous mixture such as sand and water
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incorrect answer/ need correct answer
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A mixture such as jello that has intermediate size particles
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colloid
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The amount of solute dissolved that is dissolved at solution equilibrium in a specific amount of solvent at a specific temperature
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solubility
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The change of a liquid to a vapor when the atmospheric pressure equals the vapor pressure
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incorrect answer need correct answer
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Amount of heat needed to melt one mole of a solid at its melting point
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molar heat of fusion
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Changing of a vapor into a liquid
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condensation
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The attractive forces in a liquid are
a) stong encough to prevent the particles form changeing postisions, b)too weak to hold the particles in fixed positions, c)more effetive that those in a solid, d) too weak to livit the movements of the particles |
b) too weak to hold the particles in fixed postions.
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Compared to the particles in a gas, the particles in a liquid, a) have more energy, b)are larger, c) move around less, d)are widely separated
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c) move around less
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Liquids have al the following properties except, a)definite volume, b) fluidity, c)ability to diffuse, d) easy compressibility
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d) easy compressibility
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increasing the pressure on a liquid results in, a) definite volume, b)a large increase in volume, c) larges decrease in volume, d) a change to the gaseous state
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a) little decrease in volume
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The energy of the particles in a solid is, a) higher that the energy of particles in a gas, b) high enough to allow the particles to interchange with other particles, c) higher that the energy of particles in a liquid, d) lower than the energy of the particles in liquids and gases
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d) Lower than the energy of the particles in liquids and gases
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The difference between crystalline and amorphous solids is dtermined by, a)temperature, b)pressure when substances are formed, c) amount of order in particle arrangement, d) strength of molecular forces.
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c) amount of order in particle arrangement
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A volatile liquid is one which, a) blows up, b) has strong attractive forces between particles, c) evaporates readily, d) has an odor
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c) evaporates readily
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A phase diagram indicates the conditions under which, a) the various states of a substance exist, b) amorphous solids becone crystalline, c) all vapors become flammable, d) LeChatelier's Principle does not apply
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a) the various states of a substance exist
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The equilibrium vapor pressure of a liquid is, a)the same for all liquids, b) the pressure exerted by a vapor in equilibrium with its liquid at a given temp, c) constant for a particular liquid at all temps, d)measured at O.C. t
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b) the pressure exerted by a vapor in equilibrium with its liquid at a given temp.
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Unlike most liquids, when water freezes it, a) yields oxygen, b) decreases in volume, c)increases in volume, d)yields hydrogen
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c) increases in volume
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Force that pulls adjacent parts of a liquid's surface together that results from attractive forces.
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surface tension
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An example of an amorphous solid
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incorrect answer, nedd correct answer
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General name for energy involved in phase changes
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incorrect answer
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Changing of a gas into a liquid
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condensation
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Pressure exerted by vapor molecules above a liquid
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incorrect answer
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What occurs when the vapor pressure exuals the atmospheric pressure
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incorrect answer
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Condition graphed in a phase diagram against pressure
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incorrect answer
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changing of a solid into a gas without liquefying first
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incorrect answer
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A solution that contains the maximum amount of solute for a given amount of solvent
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saturated solution
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A solution that contains more than the normal amount of solute at a given temp
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super saturated solution
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Colloidal dispersion of a liquid in a liquid
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emulsion
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Given an example of a colloidal dispersion of a liquid in a liquid
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mayonnaise
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Scattering of light because of particles in solution
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tyndall effect
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A solution that contains less than the normal amount of solute
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unsaturated solution
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Two factors that affect solubility of gases
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pressure and temperature
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What is the BP+FP of a solution made from 15.0g of bromine dissolved in 125g of benzene (C6H6)
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Show work need correct answer
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What is the osmotic pressure of a solution of 176g of C12H22O11 in 500ml of water at 27 degrees Celcius?
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show your work -----need correct answer
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Calculate the amount of heat needed to vaporize 95.0g of Ethanol(C3H5OH)
^Hvap+7.61kj/mol |
Show your work------need correct answer
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The vapor pressure of CCl4 if 85.6mm 45.0g of a solute (c10H8) is dissolved in 225g of CCl4. What is the vapor pressure of the solution?
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Show your work--------VP=69.3
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Find the molecular weight of a solute that increases the boling point of water to 110 degrees Celcius. The solution has 195g of the solute in 300g pf water.
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show your work ------ need correct answer.
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What is the molarity of a solution made by dissolving 145.0g of Ba(NO3)2 in 500ml of water?
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show your work ------I thing the answer if M=1 ------please check
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What is the solubility of gas X in a liter of water when the pressure in 160mm and Henry's constant is 6.50x10(-5)g/L mm?
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Show your work......C=.0104g/L
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How much energy is needed to melt 155.5g of ice? Heat of fusion=1.43kcal/mol
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show your work-------need correct answer
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How many grams of NaOh are need to make 350ml of a 1.5M solution?
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Show your work------21=g
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