Chemistry concepts

Question 1

What is the shape of water?

Answer 1

irregular, slightly skewed (bent)

Question 2

What is the angle formed by 2 hydrogen bonds

Answer 2

105 degrees

Question 3

What is the geometric shape of water

Answer 3

tetrahedral

Question 4

The partial negative charge of water is located in the ___

Answer 4

oxygen side

Question 5

____ is a molecule with electrical charge distributed asymmetrically

Answer 5

dipole

Question 6

2 molecules of water are joined by what bond

Answer 6

hydrogen bond

Question 7

Covalent binding of hydrogen to oxygen, sulfur and nitrogen means that the molecule is ___(hydrophilic/hydrophobic)

Answer 7

hydrophillic

Question 8

Property of water where it decreased the force of attraction between charged and polar species

Answer 8

high dielectric constant

Question 9

A high dielectric constant of water makes it an excellent ___

Answer 9

solvent

Question 10

Water is an excellent nucleophile. It leads to cleavage of what bonds

Answer 10

1. Glycoside
2. Amide
3. Ester bonds

Question 11

Property of water where it can be both an acid and base

Answer 11

amphoteric

Question 12

___ are compounds that dissolve in water easily, generally charged or polar

Answer 12

hydrophilic

Question 13

Acids are proton ___ (donor/acceptor)

Answer 13

donors

Question 14

Bases are proton ___ (donor/acceptor)

Answer 14

acceptor

Question 15

The Henderson-Hasselbach equation is important for ___

Answer 15

1. Titration of amino acids
2. Predict shift in bicarbonate buffer system
3. Predict drug distribution

Question 16

What are your physiologic buffers?

Answer 16

1. Bicarbonate
2. Orthophosphate
3. Proteins

Question 17

Oxidation is ___ (loss/gain) of electron

Answer 17

loss of electrons

remember, LEO GER