Chapter 7 Solution Chemistry

Question 1

Solute

Answer 1

The substance that is dissolved

Question 2

Solvent

Answer 2

The thing doing the dissolving

Question 3

Solubility

Answer 3

The maximum amount of solute that will dissolve in a given substance

Question 4

Molar solubility

Answer 4

The solubility given in units of moles per liter

Question 5

How to get a solubility to the molar solubility

Answer 5

Use the molar mass to get it to moles per liter

Question 6

like dissolves like

Answer 6

Like dissolves like means that a solute will dissolve in a solvent if both contain similar types of intermolecular forces and are of a similar magnitude

Question 7

Would you expect NaCl to dissolve in oil, which is non-polar

Answer 7

No. NaCl is ionic, so it has a positive and a negative, oil is non polar

Question 8

Is Br2 more soluble in CS2 or NH3

Answer 8

CS2 because it is nonpolar (;

Question 9

How to do dilution calculations

Answer 9

1. Write the molarity as a ratio. M/L
2. multiply it by the (volume of the original/new volume of diluted)
3. Clap because you are done

Question 10

Setup this… “Calculate the concentration that results when 18 L of .40M K2CrO4 is added to 20. L of water

Answer 10

.40mol/liter = 18L/20L

It is a dilution

Question 11

How to dilution calculations for mixed solutions… Good luck

Answer 11

1. Calculate the concentration for each compound as you would in a normal dilution.
2. Write a complete dissociation formula for each of the 2 compounds.
3. Place the concentration from step 1 under each element from each respective compound. Use stoics for multiple of one element.
4. The 2 compounds should share an element. To find this concentration, add both of the shared concentrations together.
5. List each elements concentration
6. Get girlfriend, and call it good

Question 12

How to calculate the concentration of an unknown acid

Answer 12

1. Write out the balanced equation for the reaction, yes, this uses stoich
2. Calculate the moles of the substance you know with the molar mass and the given concentration
3. Convert moles of one acid to moles of another acid using the stoichiometric proportions (big word😜=sound smarter than I actually am)
4. Put the moles of the desired substance over liters of the desired substance.
5. Profit

Question 13

Gnomesand

Answer 13

A cooler way of asking a person if they know what you mean/understand what you are saying to them. Usually attached to the end of sentences for added effect.

When said normally in a sentence “gnomesand” sounds like “know what I’m saying,” phonetically. If the word is said fast enough, the listener won’t be able to tell the difference.

This makes for an awesome addition to one’s everyday hip vocabulary without all the ghettoness of true Ebonics.

Example Senario. “Hey Kyle did you catch that new Terminator movie? I thought it was pretty good, but it doesn’t even equal the caliber of the first two movies, gnomesand?”

Question 14

Solution

Answer 14

A homogeneous mixture that exists in one phase