Week 2 Day 1

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

solute

Back (Answer)

thing being dissolved

Front (Question)

solvent

Back (Answer)

thing doing the dissolving (often water)

Front (Question)

Solution

Back (Answer)

result of dissolving solute in solvent

Front (Question)

Back (Answer)

Molarity moles of solute / liters of solution *uses volume of solution not solvent

Front (Question)

density of water

Back (Answer)

1 g/ml at 4ºC, less at other temps

Front (Question)

Back (Answer)

Molality moles of solute / kg of solvent *molality uses mass of solvent

Front (Question)

percent by weight to volume (%w/v)

Back (Answer)

grams of solute / 100 ml of solution

Front (Question)

Percent by weight to weight (%w/w)

Back (Answer)

grams of solute / 100 g of solution

Front (Question)

ppm

Back (Answer)

(grams of solute/grams of solution) * 1,000,000

#10

Front (Question)

1 equivalent (EQ)

Back (Answer)

1 mole of “reactivity” Ex. Na+ = one equivalent Ca++ = two equivalents

#11

Front (Question)

osmolarity

Back (Answer)

Concentration of a solution expressed as total number of solute particles per liter ex: the osmolarity of a 1 M solution of NaCl is 2 Osm

#12

Front (Question)

Solubility

Back (Answer)

the maximum amount of solute that will dissolve in a solvent usually has units of mass/vol

#13

Front (Question)

ÂHsolute

Back (Answer)

the energy needed to break up solute usually > 0

#14

Front (Question)

ÂHsolvent

Back (Answer)

the energy needed to break up solvent usually > 0

#15

Front (Question)

ÂHmix

Back (Answer)

the energy we get back by the new arrangement usually < 0

#16

Front (Question)

ÂHsolution

Back (Answer)

total energy change during dissolving of solute > 0 needs energy (endothermic) < 0 gives off energy (exothermic)

#17

Front (Question)

Effect of pressure on solubility

Back (Answer)

Increased pressure causes more gas to dissolve into solution S = kH * Pgas kH is specifec for each gas and is temperature dependent

#18

Front (Question)

Effect of temperature on solubility

Back (Answer)

• increased temperature increases solubility of liquids and solids • increased temperature decreases solubility of gases

#19

Front (Question)

Colligative properties of solution

Back (Answer)

• vapor pressure decreases with increasing solute concentration • boiling point increases with increasing solute concentration • freezing point decreases with increasing solute concentration • osmotic pressure increases with increasing solute concentration

#20

Front (Question)

Vapor pressure

Back (Answer)

pressure of the vapor caused by the evaporation of a liquid above the sample of liquid in a closed container.

#21

Front (Question)

Vapor pressure, Raoult’s law

Back (Answer)

Ps = Xs * Pºs Ps is vapor pressure exerted by solute Xs is the mole fraction of s in the solution P°s is vapor pressure of pure S

#22

Front (Question)

Osmotic pressure

Back (Answer)

water wants to move from high concentrations to low Π = M * R * T Π is osmotic pressure M is molar concentration R is universal gas constant T is temperature

#23

Front (Question)

Colloids

Back (Answer)

contain particles larger than molecules suspended in a solvent

#24

Front (Question)

osmole

Back (Answer)

number of moles of solute that contribute to osmotic pressure