BSC 2010 Thomas/ Yeargain [Exam 1
Chapters 1-5]
pH equation - CORRECT ANSWER--log[H+]
pOH equation - CORRECT ANSWER--log[OH-]
pH + pOH? - CORRECT ANSWER-14
[H+] of an acid that is pH 5? - CORRECT ANSWER-0.00001
pH=3, [H+] is? - CORRECT ANSWER-0.001
[H+] if pH is 10? - CORRECT ANSWER-1 x 10^-10
pH if [H+] is 1 x 10^-6? - CORRECT ANSWER-pH= 6
pH if [H+] is 0.001? - CORRECT ANSWER-pH= 3
pOH if [OH-] is 0.00000001? - CORRECT ANSWER-pOH= 8
pH if [OH-] is 0.00000001? - CORRECT ANSWER-pH= 6
pH if pOH =6? - CORRECT ANSWER-pH= 8
If a pH in a pool is 10. If you add a pH balancer the new pH is 6. What is the
change in [H+]? - CORRECT ANSWER-10^4 increase
If a pH in a pool is 10. If you add a pH balancer the new pH is 6. What is the
change in [OH-]? - CORRECT ANSWER-10^4 decrease
A pond's pH today is 3. A week later the pH is 12. What is the change in
concentration of [OH-]? - CORRECT ANSWER-10^9 increase
,A pond's pH today is 3. A week later the pH is 12. What is the change in
concentration of [OH-]? - CORRECT ANSWER-10^9 decrease
True or False?
Nucleic acids are the building blocks of protein. - CORRECT ANSWER-False
What organelle do prokaryotes and eukaryotes have in common? - CORRECT
ANSWER-Ribosomes DNA RNA cell membrane
Define hypothesis. - CORRECT ANSWER-Tentative explanation, falsifiable
Is hypothesis or theory more general comment - CORRECT ANSWER-theory
can a theory be changed - CORRECT ANSWER-yes
What causes an isotope? - CORRECT ANSWER-Different number of neutrons
same protons and electrons
Octet rules - CORRECT ANSWER-Each atom needs 8 electrons in its valence
shell
Polar covalent bond
shared electrons equally, share unequally, or donate and accept electrons? -
CORRECT ANSWER-shared electrons but shared unevenly
partially charged, when electronegativity is present intramolecular (between
atoms of same molecule)
Where are hydrogen bonds present? - CORRECT ANSWER-Between separate
molecules H+ to O,N, or F other molecule
hydrogen bonds weak or strong/ covalent or ionic - CORRECT ANSWER-weak
covalent (not truly but answer yes)
Van der Waals - CORRECT ANSWER-Unequal distribution of electrons, they are
non-polar.
Buffers - CORRECT ANSWER-Maintain relatively constant pH and pOH
, pick up excess H and excess OH
isomer all have the same?
1. chemical properties
2. types of elements and the number of each element that make them up
3. shape - CORRECT ANSWER-elements
are CH2O and C6H12)6 isomers - CORRECT ANSWER-no
3 types of isomers pick 3
1. isotopes
2. geometric
3. ionic
4. structural
5. enantoimers - CORRECT ANSWER-geometric structural enantiomers
isomer that where elements bonded in different order (one branched other not)
structural geometric enatntiomers - CORRECT ANSWER-structural
isomer elements mirror image - CORRECT ANSWER-enantiomers
isomers twist around double bond cis and trans - CORRECT
ANSWER-geometric
isomer double bond in different place - CORRECT ANSWER-structural
Enantiomers - CORRECT ANSWER-Non-superimposable, mirror images
example C w four different elements or R groups attached
are estrodiol and testosterone isomers and what kind - CORRECT ANSWER-yes
structural
is cooh and hooc enantiomers - CORRECT ANSWER-no
Organic chemistry - CORRECT ANSWER-Chemistry of carbon
All amino acids must have?
Chapters 1-5]
pH equation - CORRECT ANSWER--log[H+]
pOH equation - CORRECT ANSWER--log[OH-]
pH + pOH? - CORRECT ANSWER-14
[H+] of an acid that is pH 5? - CORRECT ANSWER-0.00001
pH=3, [H+] is? - CORRECT ANSWER-0.001
[H+] if pH is 10? - CORRECT ANSWER-1 x 10^-10
pH if [H+] is 1 x 10^-6? - CORRECT ANSWER-pH= 6
pH if [H+] is 0.001? - CORRECT ANSWER-pH= 3
pOH if [OH-] is 0.00000001? - CORRECT ANSWER-pOH= 8
pH if [OH-] is 0.00000001? - CORRECT ANSWER-pH= 6
pH if pOH =6? - CORRECT ANSWER-pH= 8
If a pH in a pool is 10. If you add a pH balancer the new pH is 6. What is the
change in [H+]? - CORRECT ANSWER-10^4 increase
If a pH in a pool is 10. If you add a pH balancer the new pH is 6. What is the
change in [OH-]? - CORRECT ANSWER-10^4 decrease
A pond's pH today is 3. A week later the pH is 12. What is the change in
concentration of [OH-]? - CORRECT ANSWER-10^9 increase
,A pond's pH today is 3. A week later the pH is 12. What is the change in
concentration of [OH-]? - CORRECT ANSWER-10^9 decrease
True or False?
Nucleic acids are the building blocks of protein. - CORRECT ANSWER-False
What organelle do prokaryotes and eukaryotes have in common? - CORRECT
ANSWER-Ribosomes DNA RNA cell membrane
Define hypothesis. - CORRECT ANSWER-Tentative explanation, falsifiable
Is hypothesis or theory more general comment - CORRECT ANSWER-theory
can a theory be changed - CORRECT ANSWER-yes
What causes an isotope? - CORRECT ANSWER-Different number of neutrons
same protons and electrons
Octet rules - CORRECT ANSWER-Each atom needs 8 electrons in its valence
shell
Polar covalent bond
shared electrons equally, share unequally, or donate and accept electrons? -
CORRECT ANSWER-shared electrons but shared unevenly
partially charged, when electronegativity is present intramolecular (between
atoms of same molecule)
Where are hydrogen bonds present? - CORRECT ANSWER-Between separate
molecules H+ to O,N, or F other molecule
hydrogen bonds weak or strong/ covalent or ionic - CORRECT ANSWER-weak
covalent (not truly but answer yes)
Van der Waals - CORRECT ANSWER-Unequal distribution of electrons, they are
non-polar.
Buffers - CORRECT ANSWER-Maintain relatively constant pH and pOH
, pick up excess H and excess OH
isomer all have the same?
1. chemical properties
2. types of elements and the number of each element that make them up
3. shape - CORRECT ANSWER-elements
are CH2O and C6H12)6 isomers - CORRECT ANSWER-no
3 types of isomers pick 3
1. isotopes
2. geometric
3. ionic
4. structural
5. enantoimers - CORRECT ANSWER-geometric structural enantiomers
isomer that where elements bonded in different order (one branched other not)
structural geometric enatntiomers - CORRECT ANSWER-structural
isomer elements mirror image - CORRECT ANSWER-enantiomers
isomers twist around double bond cis and trans - CORRECT
ANSWER-geometric
isomer double bond in different place - CORRECT ANSWER-structural
Enantiomers - CORRECT ANSWER-Non-superimposable, mirror images
example C w four different elements or R groups attached
are estrodiol and testosterone isomers and what kind - CORRECT ANSWER-yes
structural
is cooh and hooc enantiomers - CORRECT ANSWER-no
Organic chemistry - CORRECT ANSWER-Chemistry of carbon
All amino acids must have?
