Chem 130 Lab Final

Front 1

Colligative Property of a Soln

Back 1

physical properties that depend on solute particles dissolved in a solvent

Front 2

Formula for temperature change

Back 2

(delta)T=Kfm

Front 3

What catalyst is used to decompose H2O2?

Back 3

yeast

Front 4

What is the decomposition formula of H2O2?

Back 4

H2O2+yeast=>2H2O+O2

Front 5

2 Characteristics of Green Chemistry

Back 5

~Prevent waste
~Increase energy efficiency

Front 6

For most rxns, heat ______ the reaction rate

Back 6

increases

Front 7

4 Factors that affect the rate of a rxn

Back 7

1. nature of reactants
2. temperature
3. concentration
4. catalyst

Front 8

Dynamic Equilibrium

Back 8

Forward and reverse rxn rate are equal

Front 9

When ammonia is added to AgCl which way will the equilibrium shift?

Back 9

to the left

Front 10

Name the acid in vinegar

Back 10

acetic acid

Front 11

In aqueous soln sodium chloride is...

Back 11

neutral

Front 12

In aqueous soln magnesium oxide is...

Back 12

basic

Front 13

In aq soln, sodium carbonate is...

Back 13

basic

Front 14

In aq soln aluminum chloride is...

Back 14

acidic

Front 15

In aq soln, sodium nitrate is...

Back 15

neutral

Front 16

Y does Hg react w/ HNO3 and not HCl?

Back 16

HNO3 is an oxidizing acid

Front 17

Why boil dH2O?

Back 17

water contains dissolved CO2

Front 18

What indicator is used in Exp. 29?

Back 18

Methyl orange

Front 19

Molar solubility expression for Mg(OH)2

Back 19

Ksp=[Mg][OH-]2

Front 20

Oxidation is ____ of e-

Back 20

loss

Front 21

Reduction is ____ of e-

Back 21

gain

Front 22

What soln was used to make a salt bridge?

Back 22

KNO3

Front 23

Why must you have a salt bridge?

Back 23

It would be an open circuit

Front 24

What flows through the salt bridge?

Back 24

ions

Front 25

How does one solve for reduction potential?

Back 25

E-cell=E-cathode-E-anode

Front 26

Half life of Uranium-238

Back 26

5 billion years

Front 27

Half life of Uranium-238

Back 27

5 billion years

Front 28

Uranium emits _____ particles

Back 28

alpha

Front 29

Background radiation

Back 29

radiation from cosmic rays, atoms in body, and building materials

Front 30

Formula for hexaamminecobalt (II) sulfate

Back 30

[Co(NH3)6]SO4

Front 31

Dispose cyclohexane in...

Back 31

organic

Front 32

Dispose gloves used to handle Ba-137 in...

Back 32

radioactive

Front 33

Dispose Ni2+ complexes in...

Back 33

heavy metals

Front 34

Dispose ethanol in...

Back 34

organic

Front 35

Dispose [H2SO4] in...

Back 35

sink w/ water

Front 36

Dispose Cu (II) nitrate in...

Back 36

heavy metals

Front 37

Dispose Cl- in..

Back 37

organic

Front 38

Dispose leftover solid metals in...

Back 38

trash can

Front 39

Name 2 chemicals that should be used under the fume hood

Back 39

HCl
H2SO4

Front 40

Name 2 flammable chemicals

Back 40

Ethanol
acetone

Front 41

When diluting acid, the ____ should be added to the _____

Back 41

acid
water

Front 42

True/False: Eye washers are located on every bench

Back 42

False

Front 43

Cool v. Hot Bunsen burner

Back 43

Cool: no inner cone
Hot: inner cone

Front 44

Burets can be read to the nearest ___ mL

Back 44

0.05mL

Front 45

Ethanol is soluble in _____

Back 45

water

Front 46

Conc NH3 is located in...

Back 46

the green fume hood

Front 47

How is conc NH3 labeled?

Back 47

NH4OH

Front 48

6M H2SO4 is stored in a...

Back 48

plastic bottle

Front 49

6M H2SO4 is located...

Back 49

b/w lab benches

Front 50

Color of acetone

Back 50

colorless

Front 51

Ni(II) ion color

Back 51

green

Front 52

Ag(I) ion color

Back 52

colorless

Front 53

Color of starch+iodine

Back 53

blue-black

Front 54

What occurs in anode?

Back 54

oxidation

Front 55

What occurs in the cathode?

Back 55

reduction