Solutions Review

Solutions

100

What is a solute and solvent in a solution?

Solute is what is being dissolved, a solvent is what is dissolving.

200

What is the solute and solvent in an NaCl (aq) solution?

Solute is NaCl, and the solvent is Water.

300

Why is Milk not considered a solution?

It is not transparent and light is dispersed within.

400

What are the factors that influence solubility

What is temperature, agitation, surface area, pressure

500

What does "like dissolves like" mean? Explain in terms of polarity and ionic.

Like dissolves like means that soluteswith the same polarity (polar or nonpolar) as the solvent will dissolve in the solvent. Ionic will dissolve in polar solvents.

Molarity

100

What is the formula for Molarity?

moles of solute/liters of solution

200

Which has a higher Molarity?

a) 2 moles of solute dissolved in 3 liters of solution

b) 4 moles of solute dissolved in 8 liters of solution

a -- 2 moles of solute dissolved in 3 liters of solution

300

What is the molarity of potassium fluoride (aq) solution containing 116 g of solute in 1.00 liter of solution?

2 M

400

How many liters of 0.5 M sodium hydroxide solution would contain 2 moles of solute?

4 Liters

500

the molarity of a solution containing 5 moles of solute in 250 milliliters of solution

20M

Solubility

100

Type of solution that contains less dissolved solute for a given temperature and pressure than expected

Unsaturated solution

200

contains the maximum amount of dissolved solute for a given amount of solvent at a specific temperature and pressure.

Saturated solution

300

contains more dissolved solute at a certain temperature.

Supersaturated solution

400

Another name for a solution

homogenous mixture

500

What are two types of heterogeneous mixtures?

Colloids and Suspensions

Types of Mixtures

100

do not blend smoothly throughout, and the individual substances remain distinct.

What is Heterogenous Mixtures?

200

is a mixture containing particles that settle out if left undisturbed.

What is Suspension?

300

A heterogeneous mixture of intermediate-sized particles

What is Colloids?

400

dispersed colloid particles scatter light, a phe-nomenon

What is Tyndall effect?

500

Describe how you can test to see if a solution is:

A: Colloid

B: Suspension

C: Solution

A: Shows tyndall effect but not filtration

B: shows tyndall effect and filtration

C: Does not show tyndall or filtration

Dilutions

100

A stock solution of 1.00 M of NaCl is available. How many milliliters are needed to make 100.0 mL of 0.750 M?

75mL

200

If 45 mL of water are added to 250 mL of a 0.75 M K2SO4 solution, what will the molarity of the diluted solution be?

0.64M

300

Calculate the final concentration of a solution that is made by dissolving 18.8 M of solid sodium hydroxide in 600.0 mL of solution with a final volume of 950.0 mL

11.9M

400

If you dilute 175 mL of a 1.6 M solution of LiCl to 1.0 L, determine the new concentration of the solution.

0.28M

500

How much water would I need to add to 780. mL of a 5.60 M KCl solution to make a 2.50 M solution?

175 mL

Solubility Rules

100

NaOH, KOH, Mg(OH)2 NH4OH, Ca(OH)2, Sr(OH)2, Ba(OH)2. Which one is not soluble?

What is Mg(OH)2

200

What group is always soluble no matter what?

Group 1

300

NaOH Fe₂S₃ MgSO₄ Which compound is insoluble?

What is Fe₂S₃

400

PbCl₂ Ba(NO₃)₂ MgCO₃ Which compound is soluble?

Ba(NO₃)₂

500

BaSO₄, PbSO₄, Ag₂SO₄ and SrSO₄. What does this group of compounds have in common?

What is all are insoluble.