MOLARITY AND CONCENTRATION

Question 1

The most common measure of concentration in the laboratory is

Answer 1

molarity

Question 2

moles of solute in moles, over liter of solution in

liter.

Answer 2

Molarity (M)

Question 3

A homogenous mixture of two or more substances with each substance
retaining its own chemical identity.

Answer 3

Solutions

Question 4

composes MAJORITY of the solution.

Answer 4

Solvent

Question 5

Composes MINORITY of the solution.

Answer 5

Solute

Question 6

if the solvent and solute DID NOT mix, it will give you a

Answer 6

heterogenous mixture, or a suspension.

Question 7

The maximum amount of solute that will dissolve in a given amount of
solvent under a given set of conditions.

Answer 7

Solubility

Question 8

Most solids become more soluble in water with _______temperature.

Answer 8

increasing

Question 9

gas solubilities in water________ with increasing temperature.

Answer 9

decrease

Question 10

A solution that contains less than the maximum amount of solute that
can be dissolved under the conditions at which the solution exists.

Answer 10

Unsaturated

Question 11

A solution that contains the maximum amount of solute that can be
dissolved under the conditions at which the solution exists.

Answer 11

Saturated

Question 12

An unstable solution that temporarily contains more dissolved solute
than that present in a saturated solution.

Answer 12

Supersaturated

Question 13

Maximum amount of solute added to the beaker

Answer 13

6 moles

Question 14

You can remove some solute with the drain faucet or you can remove all of the solute by clicking?

Answer 14

Remove Solute

Question 15

contains concentrated solution of the solute

Answer 15

The dropper

Question 16

All of the solutions are at 25 PC except the drink mix, which is at?

Answer 16

20°C.

Question 17

When the moles of solute per liter of water is _______ the saturation point, the solution will saturate and small crystals will form at the bottom of the beaker:

Answer 17

above

Question 18

_______solvent = Increase concentration

Answer 18

Decrease

Question 19

Solubility of each solution listed was calculated at 25”C, except for ______; and Drink mix, which were based on data taken at 20 degrees.

Answer 19

AuCl

Question 20

A tone plays that changes with the _________of the concentration of the solution to emphasize the change in concentration by either the amount of solute or volume of the solution, decreasing in pitch with increasing concentration.

Answer 20

magnitude

Question 21

______solute = increase molarity

Decrease volume =________ molarity

Answer 21

Increase

Question 22

M and L____ relationship

Answer 22

inverse

Question 23

M and mol______ relationship

Answer 23

direct

Question 24

Before starting,____ the tank from previous procedure.

Answer 24

drain

Question 25

Set the volume of water to_______ and dip the probe in the solution.

Answer 25

300 mL