BIO 1201 GREGG EXAM 2 STUDY SHEET
TESTED QUESTIONS AND ANSWERS FULL
SOLUTION
⩥ An atom with the atomic number 11 has a valence of ___.
Answer: 1
⩥ What is the molecular mass of C12H22O11 = ?
§Atomic masses
§Carbon=12
§Hydrogen=1
§Oxygen=16
Answer: 342
⩥ How much NaCl would you need to make a 1.0 molar solution in one
liter of water?
§Na=23
§Cl=35.5
Answer: 58.5
,⩥ How much NaOH would you need to make a 3.0 Molar solution?
§Na=23
§O=16
§H=1
Answer: 120
⩥ Beginning with a solution of pH 8 you increase the [H+] by a factor of
1,000 what is the new pH of the solution?
Answer: 5
⩥ Beginning with a solution of pH 7 you decrease the [H+] by a factor
of 100 what is the new pH of the solution?
Answer: 9
⩥ Beginning with a solution of pOH 5 you increase the [OH-] by a
factor of 1,000 what is the new pH of the solution?
Answer: 12
⩥ The log of 1,000 to the base 10 is ___.
Answer: 3
, ⩥ Which of the following would you predict to have the highest
solubility in water?
a. C2H6O
b. C3H8
c. C6H6
d. All of these would be equally soluble
Answer: a. C2H6O
⩥ Which of the following BEST summarizes the relationship between
dehydration reactions and hydrolysis?
a. Dehydration reactions assemble polymers and hydrolysis breaks them
down.
b. Hydrolysis occurs during the day and dehydration happens at night.
c. Hydrolysis creates polymers and dehydration reactions destroy them.
d. Dehydration reactions occur only in animals and hydrolysis reactions
occur only in plants.
Answer: a. Dehydration reactions assemble polymers and hydrolysis
breaks them down
⩥ In a biological membrane, the phospholipids are arranged with the
fatty acid chains facing the interior of the membrane. As a result, the
interior of the membrane is ___.
TESTED QUESTIONS AND ANSWERS FULL
SOLUTION
⩥ An atom with the atomic number 11 has a valence of ___.
Answer: 1
⩥ What is the molecular mass of C12H22O11 = ?
§Atomic masses
§Carbon=12
§Hydrogen=1
§Oxygen=16
Answer: 342
⩥ How much NaCl would you need to make a 1.0 molar solution in one
liter of water?
§Na=23
§Cl=35.5
Answer: 58.5
,⩥ How much NaOH would you need to make a 3.0 Molar solution?
§Na=23
§O=16
§H=1
Answer: 120
⩥ Beginning with a solution of pH 8 you increase the [H+] by a factor of
1,000 what is the new pH of the solution?
Answer: 5
⩥ Beginning with a solution of pH 7 you decrease the [H+] by a factor
of 100 what is the new pH of the solution?
Answer: 9
⩥ Beginning with a solution of pOH 5 you increase the [OH-] by a
factor of 1,000 what is the new pH of the solution?
Answer: 12
⩥ The log of 1,000 to the base 10 is ___.
Answer: 3
, ⩥ Which of the following would you predict to have the highest
solubility in water?
a. C2H6O
b. C3H8
c. C6H6
d. All of these would be equally soluble
Answer: a. C2H6O
⩥ Which of the following BEST summarizes the relationship between
dehydration reactions and hydrolysis?
a. Dehydration reactions assemble polymers and hydrolysis breaks them
down.
b. Hydrolysis occurs during the day and dehydration happens at night.
c. Hydrolysis creates polymers and dehydration reactions destroy them.
d. Dehydration reactions occur only in animals and hydrolysis reactions
occur only in plants.
Answer: a. Dehydration reactions assemble polymers and hydrolysis
breaks them down
⩥ In a biological membrane, the phospholipids are arranged with the
fatty acid chains facing the interior of the membrane. As a result, the
interior of the membrane is ___.
