Calculations In Solubility

Question 1

What is the mass percent formula

Answer 1

(Grams of solute/grams of solution)x100%

Question 2

What is a mole?

Answer 2

Defined as an amount of a substance that corresponds to avogadro’s number

Question 3

What is Avogadro’s number

Answer 3

6.02x10^23

Question 4

What is molarity formula

Answer 4

M=moles of solute/liters of solution

Question 5

Is molarity affected by temp?

Answer 5

Yes, since molarity depends on the volume of a solution and solutions are affected by temperature

Question 6

What is the formula for molality?

Answer 6

m=moles of solute/kg of solvent

Question 7

What is dilution?

Answer 7

Process of decreasing the concentration of a solution by adding more solvent

Question 8

What is the dilution formula?

Answer 8

M1V1=M2V2

Question 9

What are colligative propertied?

Answer 9

Physical properties of a solution that depends on the ampount of solute

Boiling point elevation
Freezing point depression
Vapor pressure lowering
osmotic pressure

Question 10

What is the formula for boiling point elevation?

Answer 10

∆Tb = iKbm
∆Tb = Change in Boiling point

i = Van’t Hoff Factor (accounting for ionization of the solute)

Kb = Molal boiling point elevation constant

m = Molality of the solute

Question 11

What is the formula for freezing point depression?

Answer 11

∆Tf = iKfm

∆Tf = Change in Freezing point

i = Van’t Hoff Factor (accounting for ionization of the solute)

Kf = Molal freezing point depression constant

m = Molality of the solute

Question 12

What is osmosis?

Answer 12

The diffusion of a fluid through a semipermeable membrane

Question 13

What is osmotic pressure?

Answer 13

The pressure difference need to stop the flow of solvent into a semi permeable membrane