STUFF Flashcards

0
Q

calorimetry is

A

the measurement of a heat that is transferred during a reaction or physical process

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1
Q

spefific heat is

A

heat transferred over (mass times the change in temperature) or Q=MCAT

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2
Q

calorimeter is

A

equipment used to measure the heat that is transferred during a reaction or physical process

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3
Q

electrolyte

A

ability to conduct electricity because the solute ionizes

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4
Q

perfect by mass formula

A

mass of solute (what’s being dissolved) over mass of solution (total) all times 100 to get a percent

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5
Q

percent by volume

A

volume of solute over volume of solution all times 100

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6
Q

dilution formula

A

volume of original solution times molarity of the original solution = volume of the diluted solution times molarity of the diluted solution

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7
Q

molarity =

A

moles of solute over liters of solution

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8
Q

delta H =

A

delta H (products) minus delta H (reactants)

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9
Q

enthalpy is

A

the amount of energy released or absorbed as heat by a system when the pressure is constant

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10
Q

exothermic graphs go ___ from reactants to products?

A

down

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11
Q

endothermic graphs go ___ from reactants to products

A

up

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12
Q

thermochemical equations

A

chemical equations that include the enthalpy change

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13
Q

factors that affect solubilities and rates of dissolution

A

temperature, agitation, surface area

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14
Q

solution that has the ability to conduct electricity because the solute ionizes

A

electrolyte solution

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15
Q

solution that does not conduct electricity because it does not ionize

A

non-electrolyte solution

16
Q

solution that has less than the maximum amount of solute dissolved in a certain amount of solvent at a give temperature and pressure

A

unsaturated

17
Q

solution that has contains maximum amount of solute dissolved in a certain amount of solvent at a give temperature and pressure

A

saturated

18
Q

solution that has been heated and then slowly cooled so that more than the maximum amount of a solute can be dissolved in a certain amount of solvent at a given temperature and pressure

A

supersaturated

19
Q

saturated will be what the line?

A

on the line

20
Q

supersaturated will be what the line?

A

above the line

21
Q

unsaturated will be what the line?

A

under the line

22
Q

collisions among the solute and solvent molecules occur at a what rate when a solution is agitated

A

greater rate

23
Q

what depends on the amount of solute dissolved in a given amount of solvent?

A

concentration

24
Q

in molarity, you have to convert

A

ML TO LITERS

25
Q

process of decreasing the concentration of a solution by adding additional solvent

A

dilution

26
Q

a substance that dissolves in a solvent is

A

soluble in that solvent

27
Q

a substance that does not dissolve in a solvent is said to be

A

insoluble in that solvent

28
Q

two liquids that are soluble in each other are what, and if they’re not?

A

miscible, immiscible

29
Q

the overall energy change that occurs during the solution formation process is called the

A

heat of solution

30
Q

the solubility of a gas in any solvent decreases or increases as its external pressure increases

A

increases