Solutions and pH

Question 1

explains the difference between a solution, a colloid, and a suspension

Answer 1

1. suspension- a mixture with large undisolved particles that easily settle out
2. colloid- a mixture with small undissolved particles that do not settle out
3. solution- a mixture containing at least one solvent and one solute

Question 2

what are the thrre factors that affect solubility, expl

Answer 2

1. temperature (liquids and solids increase in temperature increase in solubility, in gasses increase in temperature deacrese in solubility)
2. pressure (for gas, increase in pressure increase in solubility)
3. type of solvent (polar vs. non-polar)

Question 3

what is a saturated solution

Answer 3

no more solute can dissolve into the solvent

Question 4

if you pour melted butter into a glass of water (a polar solvent) it will separate out and no matter how much you mix it, it will always separate. what does this mean about butter

Answer 4

it is non-palar

Question 5

why are most househole cleaning products bases

Answer 5

so they dont corrode metals

Question 6

why is it important to know not only an acids concentration but also pH

Answer 6

a strong acid or base is always strong no matter the concentration

Question 7

in order to have a netralization reaction what must be true about the acid and base

Answer 7

they have to be eaqual strength

Question 8

what does pH measure

Answer 8

how many hydrogen inos are in a substence

Question 9

using the words, pressure, solubility, and solution, explain why a bottle of soda that has been shaken will explode when opened

Answer 9

When you shake a bottle pressure increases, solubility increases, and more solute dissolves. When you open the bottle the pressure deacreases andd the solubility of the solution deacreses, so the solute that couldnnt be held is expeled from the solution

Question 10

what are the properties of a acid

Answer 10

1.taste- sour
2. feel- burn/sting
3.corosive to metals
4.turns blue litmus paper red
examples- fruit, vinigar, batteries

Question 11

what are the paroperties of a base

Answer 11

1.taste- bitter
2.feel- slippery
3.non-corosive to metals
4.turns red litmus peper blue
examples- soap, househole cleaners, baking soda