Week 1 Gen/Org Chem

Question 1

How many significant figures? 222 ? 0.0123 ? 0.2050 ?

Answer 1

222= 3 0.0123=3 ( leading 0 are not significant) 0.2050=4 (Trailing 0 in a # w/ a decimal are significant)

Question 2

0.0000000005 Scientific Notation

Answer 2

5 x 10^-10

Question 3

42 Celsius = what in Farhenheit?

Answer 3

F= 9/5 (42) +32 or F= 1.8 (42) +32 Answer : 107.6

Question 4

96 Farhenheit = What in Celsius?

Answer 4

C= 0.556 x (F-32) or C=5/9 (F-32) Answer: 35.58

Question 5

Absolute zero is ?

Answer 5

-273.15 celcius or 0 Kelvin

Question 6

Hetero/Homo Pure/Mixture A glass of water with ice cubes in it?

Answer 6

Hetero pure

Question 7

Hetero/Homo Pure/Mixture Chicken noodle soup

Answer 7

Hetero mixture

Question 8

Homemade sweetened ice tea with sugar?

Answer 8

Homo Mixture (single phase liquid, but has sugar in it)

Question 9

Vodka only in a glass

Answer 9

Homo Pure

Question 10

A pure substance containing only 1 atom

Answer 10

Element

Question 11

The smallest unit of an element

Answer 11

Atom

Question 12

On the periodic table the element carbon C has 2 numbers associated with it what are they?

Answer 12

Atomic Mass and Atomic number

Question 13

The atomic number represents what?

Answer 13

The number of protons

Question 14

The atomic mass represents?

Answer 14

The number of protons and neutrons together

Question 15

An atom with the same number of protons but having more number of neutrons is called a ?

Answer 15

Isotope

Question 16

The strongest chemical bond is ?

Answer 16

Covalent

Question 17

Covalent bonds are a _______ of electrons?

Answer 17

Sharing of a pair

Question 18

All atoms except _____ and _____ fill the outer layer of electrons with an octet

Answer 18

Hydrogen and Helium

Question 19

NaCl has what type of bond?

Answer 19

Ionic Bond

Question 20

_______ _________ result form the transfer of electrons from one atom to another leaving atoms with + and - charges to attract one another

Answer 20

Ionic Bond

Question 21

Non-covalent bonds consist of:

Answer 21

Ionic bonds Hydrogen Bonds Hydrophobic bonds London dispersion forces Keesom forces

Question 22

Hydrogen bonds?

Answer 22

A weak electrostatic interaction between a hydrogen atom and 2 electronegative atoms

Question 23

London dispersion forces

Answer 23

Very weak interactions occuring between electrically neutral molecules at close range

Question 24

IA ( far left column) are in what family?

Answer 24

Alkaline Metals

Question 25

Noble gasses are which family?

Answer 25

VIII far Right column

Question 26

Physical properties of non-metals are observed at ?

Answer 26

Room temperature

Question 27

What is Avagadro's number?

Answer 27

6.022 x 10²³

Question 28

One mole of a substance is called a _______ and has units of \_\_\_\_\_\_\_

Answer 28

Molar Mass and has units of g/mol

Question 29

How many moles are in 75 g of NaCl?

Answer 29

Na mass= 23, Cl mass=35 23+35=58 75/58 = 1.293 g/mole 1.293 moles in 75 g of NaCl

Question 30

Polyatomic Ion ?

Answer 30

contains atoms covalently bonded but retain their identity within the compound

Question 31

Ammonium

Answer 31

NH₄⁺

Question 32

Hydronium

Answer 32

H₃O⁺

Question 33

acetate

Answer 33

C₂H₃O₂^-

Question 34

Hydrogen carbonate (bicarb)

Answer 34

HCO3-

Question 35

Hydroxide

Answer 35

OH-

Question 36

Nitrate

Answer 36

NO₃^-

Question 37

carbonate

Answer 37

CO₃^2-

Question 38

Reduction

Answer 38

Neutral Cl₂ + 2e- = 2Cl- When a reactant gains electrons and becomes more negative. (+) or a neutral to a (-) = Reduction

Question 39

Peroxide

Answer 39

O₂ ^2-

Question 40

Sulfate

Answer 40

SO₄ ^2-

Question 41

Phosphate

Answer 41

PO₄ ^3-

Question 42

Oxidation

Answer 42

Neutral atom (Na) to Na+ (+) e- when the reactant loses electrons and becomes more positive. (-) or neutral to a (+) = Oxidation

Question 43

Le Chatelier's Principle

Answer 43

Any stress placed on an equilibrium system will cause the system to shift to minimize the effect of the stress

Question 44

A functional group is?

Answer 44

A set of atoms bonded together in a specific way

Question 45

Functional groups define\_\_\_\_\_\_ and _______ of the compound?

Answer 45

chemical and physical properties

Question 46

Aromatics are made up of a ______ ring?

Answer 46

Benzene

Question 47

Alkynes are a _____ bond?

Answer 47

triple

Question 48

Alkanes are a _____ bond?

Answer 48

single

Question 49

Alkenes are a _____ bond?

Answer 49

double

Question 50

Answer 50

ALKENE

Question 51

Answer 51

ALKYNES

Question 52

Answer 52

ALCOHOL

Question 53

Answer 53

ETHER

Question 54

Answer 54

AMINE

Question 55

Answer 55

ALDEHYDE

Question 56

Answer 56

KETONE

Question 57

Answer 57

CARBOXYLIC ACID

Question 58

Answer 58

ESTER

Question 59

Answer 59

AMIDE

Question 60

Answer 60

PHENOL

Question 61

Answer 61

AROMATIC

Question 62

METH ETH PROP

Answer 62

1 2 3

Question 63

BUT PENT HEX

Answer 63

4 5 6

Question 64

HEPT OCT NAN DEC

Answer 64

7 8 9 10

Question 65

Answer 65

Question 66

Answer 66

Question 67

Answer 67

Question 68

Answer 68

ETHENE

Question 69

Answer 69

ETHYNE

Question 70

R-X ( The x implies what?)

Answer 70

A Halogen is attached

Question 71

Answer 71

Halothane

Question 72

What is CH₃-CH₃-OH

Answer 72

EHTHANOL

Question 73

What is CH₃-CH₂-CH₂-OH

Answer 73

PROPANOL

Question 74

Answer 74

Question 75

Answer 75

DESFLURANE

Question 76

Answer 76

SEVOFLURANE

Question 77

Answer 77

ISOFLURANE

Question 78

Answer 78

ENFLURANE

Question 79

Answer 79

AMINE

Question 80

Answer 80

KETON

Question 81

Answer 81

ALDEHYDE

Question 82

Answer 82

CARBOXYLIC ACID

Question 83

Answer 83

ESTER

Question 84

Answer 84

AMIDE

Question 85

Answer 85

Question 86

Answer 86

Question 87

Geometric Isomer

Answer 87

a subset of isomers that have atoms connected by the same sequence of bonds but are different in the 3 demensional space (Cis and Trans)

Question 88

Stereoisomers

Answer 88

Isomer that containes a chiral center (A carbon with 4 different groups attached)

Question 89

Chirality

Answer 89

Mirror images that are not superimposable

Question 90

Enantiomer

Answer 90

a steroisomer that exists as a non-superimposible mirror image

Question 91

Enantiomers have the same\_\_\_\_\_, \_\_\_\_\_, ______ ?

Answer 91

boiling point, melting point, density

Question 92

Which is usually more potent Dextrarotatory or Levorotatory?

Answer 92

Levorotatory

Question 93

Racemic mixture is

Answer 93

50% levo and 50% Detra

Question 94

Dextrarotarory rotates light to the ?

Answer 94

Right

Question 95

Rectus decreases to the ?

Answer 95

Right or clockwise

Question 96

Sinister decreases to the ?

Answer 96

Left or counter-clockwise