CH 224: Lab Quiz 1

in this experiment you are going to use 100. mg of sodium borohydride. how many moles of sodium borohydride will you use?

0.00264

how many moles of hydride are in the amount of sodium borohydride that you will be using?

0.01057

which of the following cannot be made by the reduction of a ketone or aldehyde with NaBH4 in methanol?

2-methyl-2-propanol

of the following compounds, which one would produce chloroform when treated with bleach?

2-pentanone

what is the IUPAC name of the following compound

5-methyl-3-heptanone (farthest right)

in general, the reduction of a ketone to an alcohol can be accomplished by all of the following except one. which one will not reduce a ketone?

HIO4

what is the best source where you can find information about the toxicity of a compound

NC State's Environmental Health and Safety website

the reaction that you will conduct in this experiment is known as a "haloform" reaction. when a methyl ketone is used as a substrate, what is it converted to in this reaction?

a carboxylic acid

you have accidently broken a test tube in the lab and spilled a chemical on the lab bench. which of the following best explains what you should do?

caution your lab partners to avoid the area while you inform the instructor of the small accident

the following items are not allowed in the labs

food and drink

why is it important to find the CAS (chemical abstracts number) for a specific compound?

it is a unique identifier

when working with household bleach it is important to take certain precautions due to the one of the following reasons

it is an irritant

the following items are required lab attire

long pants, covered shoes

coupling causes the peaks in 1H NMR spectra to be split into

multiple peaks equal to the number of hydrogen on surrounding atoms, plus one

what information do we gather from the multiplicity of a signal in an 1 H NMR spectrum?

number of adjacent (neighboring) hydrogens

what is the best database to find information about the synthesis of an organic compound?

reaxys

all hydrogen atoms

resonate at different frequencies depending on their environment

what do we use NMR spectroscopy for?

to determine the molecular structure of a compound