Solution

Question 1

Properties of an aqueous solution

Answer 1

Transparent, clear, not opaque
Transition metals color (salts)
Passes thru filter paper, dissolved particles small
Separate by distillation (not evaporate-collects all components)

Question 2

Solubility

Answer 2

The amount of substance dissolved in another (# grams solute/100. g H2O) @ a given TEMPERATURE, (s/aq/l dissolve better in higher temp)

Question 3

Solution

Answer 3

A homogenous mixture (aq) in which one substance is dissolved in another substance

Question 4

Solute

Answer 4

Substance being dissolved (usually smaller mass than other) SALUTES THE SOLVENT

Question 5

Solvent

Answer 5

Substance doing the dissolving AKA dissolving medium (usually bigger quantity)

Question 6

Solvation

Answer 6

Process by which solvent surrounds/separates solute (molecule-ion attraction) “hydration” with water solvent (O has higher EN/negative, H is pos)

Question 7

Saturated

Answer 7

Solvents holding as much solute as is can @ given TEmpEraTuRE, when the rate of dissolving=rate of recrystallizing in equilibria (solution equilibria)

Question 8

Unsaturated

Answer 8

Solvent can still hold more solute @ given TEMPPPP (below line)

Question 9

What properties are temperature dependent?

Answer 9

Solubility & Saturation

Question 10

Supersaturated

Answer 10

Solvent holding more solute than it can (above line)

Question 11

How do you make supersaturated solution?

Answer 11

100g H2O can hold 5g, add 5g, add in 3g, raise temp, stir to dissolve, STABLE, let return to room temp/cool undisturbed, UNSTABLE, tap/add seed to disturb, exess 3g settle to bottom in flakes, returns to eq/solution above saturated

Question 12

Density of water

Answer 12

1 g/mL

Question 13

Dilute

Answer 13

Solvent>solute

Question 14

Concentrated

Answer 14

Solute>solvent (on chart, g solute>100g H2O)

Question 15

Solubility of gases

Answer 15

Negative slopes, so dissolves better/stable @ LOWER temp (soda, increase temp/increase entropy/unstable CO2)

Question 16

Increase temp…(solubility?)

Answer 16

entropy dec, solubility inc s/aq/l

entropy inc, solubility dec gas

Question 17

polar-polar (or ionic, like NaCl & H2O) and nonpolar-nonpolar solute/solvent pairs?

Answer 17

Solution LIKELY

Question 18

nonpolar-polar/ionic or polar-nonpolar/ionic

Answer 18

Solution UNLIKELY

Question 19

How many do not dissolve?

Answer 19

given g MINUS saturated (value on the line)

Question 20

If it’s NOT 100g water, what do you do?

Answer 20

Proportion

Question 21

REVIEW NOMENCLATURE

Answer 21

AND ELEMENTS PROBS! And notes Just In Case!

Question 22

Which salt (aka neutral ionic) LEAST effected by temp change?

Answer 22

NaCl (flattish line!)

Question 23

How many grams must be added for the solution to be saturated @ diff temp?

Answer 23

g solute @ original temp MINUS g solute @ the diff temp