EXPERIMENTS 1-3

Question 1

how many ml of liquid is present in a 1/2 test tube?

Answer 1

10ml

Question 2

test tube is filled with 1/4 of a liquid? How many ml is 1/4?

Answer 2

5ml

Question 3

test tube holds a liquid of 1/8? How many ml does 1/8 of unknown solution does the test tube hold?

Answer 3

2 ml

Question 4

Answer the problem and give the chemical formula
Ferric chloride (1mL) + Sodium hydroxide (4mL) equates to ?

Answer 4

Ferric hydroxide + Sodium chloride
FeCl3(s) + 3NaOH(aq) equates to Fe(OH)3(s) + 3NaCl(aq)

Question 5

Liquid that passes through the paper that undergoes filtration

Answer 5

Filtrate

Question 6

Liquid poured off from precipitate; separated using decantation

Answer 6

Supernatant liquid

Question 7

Solid resulting from evaporation

Answer 7

Residue

Question 8

it is a method of separating a liquid from a solid

Answer 8

decantation

Question 9

what are the two types of ways in separating a liquid and a solid?

Answer 9

decantation and filtration

Question 10

in heating, always hold the test tube in a _______ degree angle. Heat the ________ portion of the liquid first and move slowly ______ and _______.

Answer 10

45 ; upper ; back and forth

Question 11

in accurately measuring a liquid what glassware should you use? and what should be level of your eyes in measuring?

Answer 11

Graduated cylinder and lower meniscus

Question 12

how do you operate a bunsen burner?

Answer 12

1. make sure that the gas outlet, gas adjustment knob and air holes are close
2. ALWAYS open the valve first before opening the gas adjustment knob.
3. the lighter should be turned on first before adjusting the gas adjustment knob
4. adjust the flames by rotating the gas adjustment knobs
5. open the air holes to the desired blue flame

Question 13

is the solid formed by the reaction between two solutions

Answer 13

Percipitate

Question 14

Fe(OH)3) give the chemical name

Answer 14

Ferric hydroxide

Question 15

Ferric hydroxide

Answer 15

Fe(HO)3

Question 16

FeCl3

Answer 16

Ferric chloride

Question 17

NaOH

Answer 17

Sodium Hydroxide

Question 18

Ferric chloride

Answer 18

FeCl3

Question 19

Sodium Hydroxide

Answer 19

NaOH

Question 20

Iodine Chemical formula

Answer 20

I2

Question 21

Sugar chemical formula

Answer 21

C12H22O11

Question 22

sodium thiosulfate chemical formula

Answer 22

Na2S2O3

Question 23

Carbon tetrachloride

Answer 23

CCl4

Question 24

Chloroform

Answer 24

CHCl3

Question 25

Ethyl Alcohol

Answer 25

C2H5OH

Question 26

Glycerin

Answer 26

C3H8O3

Question 27

Chromic Sulfate

Answer 27

Cr2(SO4)3

Question 28

ammonium hydroxide

Answer 28

NH4OH

Question 29

Acetic Acid

Answer 29

HAc/ CH3COOH

Question 30

Hydrochloride

Answer 30

HCl

Question 31

Na2S2O3

Answer 31

Sodium thiosulfate

Question 32

CCl4

Answer 32

Carbon tetrachloride

Question 33

CHCl3

Answer 33

Chloroform

Question 34

C2H5OH

Answer 34

Ethyl Alcohol

Question 35

C3H8O3

Answer 35

Glycerin

Question 36

FeCl3

Answer 36

ferric chloride

Question 37

Zn(NO3)2

Answer 37

Zinc Nitrate

Question 38

Al2(SO4)3

Answer 38

Aluminum sulfate

Question 39

NaOH

Answer 39

Sodium Hydroxide

Question 40

CH3COOH

Answer 40

Acetic Acid

Question 41

HCl

Answer 41

Hydrochloric Acid

Question 42

it is the mixture of ethyl alcohol and water?

Answer 42

Miscible

Question 43

What is the color of the methyl orange if it is acid?

Answer 43

Red

Question 44

What is the color of the methyl orange if it is a base?

Answer 44

Orange/yellow

Question 45

What is the color of the phenolphthalein if it is acid?

Answer 45

Colorless

Question 46

What is the color of the phenolphthalein if it is base?

Answer 46

Clear Pink

Question 47

what acid reacts faster with aluminum?

Answer 47

Hydrochloric acid

Question 48

What acid reacts faster with marble chips?

Answer 48

Hydrochloric Acid