Experiment 4 Solution Preparation

Question 1

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

Answer 1

Solution

Question 2

can be expressed in a number of ways

Answer 2

Solution

Question 3

A solution in which water is the solvent

Answer 3

Aqueous solution

Question 4

A solution in which a substance other than water is the solvent

Answer 4

Nonaqueous solution

Question 5

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

Answer 5

Unsaturated

Question 6

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

Answer 6

Saturated

Question 7

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

Excess solute crystallizes out with time and the solution reverts to a saturated solution

Answer 7

Supersaturated

Question 8

Formula

Answer 8

M1V1 = M2V2

Question 9

process of reducing the concentration of a solution by increasing the amount of solvent

Answer 9

Dilution

Question 10

Solution Preparation: Solid Solute

1. ________
2. ________ and ________ to correct vol flask
3. ________ to the mark

Answer 10

Weigh
Dissolve and Transfer
Dilute

Question 11

Preparation of NaOH Solution

1. Calculate the mass (g) of NaOH needed.
   mol NaOH =
   mass NaOH =

Answer 11

MxV in L
mol NaOH x molar mass NaOH

Question 12

Preparation of NaOH Solution

2. Weigh using ___________

Answer 12

Top Loading Balance

Question 13

Preparation of NaOH Solution

3. _____ in enough (less than the desired V soln) amount of _____

Answer 13

Dissolve
Water

Question 14

Preparation of NaOH Solution

4. ______in volumetric flask then ______ to desired amount of solution.

Answer 14

Transfer
dilute

Question 15

Preparation of HCl Solution

1. Calculate the volume of HCl needed
   Formula: ?

Answer 15

M1V1=M2V2

Question 16

Preparation of HCl Solution

2. Obtain the liquid using _________ and _________.

Answer 16

serological pipette and aspirator.

Question 17

Preparation of HCl Solution

3. Transfer the _______ into the volumetric flask containing small ______.

Answer 17

withdrawn acid
amount of water.

Question 18

Preparation of HCl Solution

4. Dilute to desired amount of _______.

Answer 18

Solution

Question 19

Reminders: Add ____to ____

Answer 19

Acid to Water

Question 20

Reminders: Observe proper reading measurement: for clear – lower_________ and upper for ________

Answer 20

meniscus
colored solutions

Question 21

Reminders: Always ______properly

Answer 21

Label

Question 22

Reminders: No spills ➔ _______

Answer 22

inaccuracy

Question 23

Reminders: Make sure all washings were transferred into _________.

Answer 23

volumetric flask

Question 24

Type I grade water, also known as

Answer 24

Ultrapower

Question 25

it is the purest form of water to be produced.
It’s used for the most critical applications and advanced analytical procedures.

Answer 25

Type I grade water or Ultrapower

Question 26

____________, also known as Ultrapower

Answer 26

Type I grade water

Question 27

Type II water grade doesn’t have the same _______ of Type I, but still maintains high levels of _______

Answer 27

Pureness
Purity

Question 28

Type II Water is a _________ for clinical analyzers as the ___ build-up is reduced with this water type.

Answer 28

good feed water
Calcium

Question 29

Type III grade water, also known as

Answer 29

RO Water

Question 30

____________, also known as RO water

Answer 30

Type III grade water

Question 31

It is water produced through the purification technology reverseosmosis.

Answer 31

Type III grade water or RO water

Question 32

It is a free of inorganic materials, suspended impurities and most organic contaminants.

Answer 32

Distilled Water

Question 33

While there may be school laboratory applications where distilled water is required, in many applications, ____________ (aka demineralized) water will do just as well.

Answer 33

Deionized

Question 34

___ like a water, is free of inorganic materials and most suspended contaminants.

Answer 34

Deionized Water

Question 35

if you need organic-free water, buy a still or buy _____________

Answer 35

Distilled Water