WorksheetsCHEM 403L- Expt. 2 (Pre-lab)
Total questions: 10
Worksheet time: 2mins
Which of the following corresponds to the given GHS symbol?
oxidizer
toxic
corrosive
flammable
Which of the following corresponds to the given GHS symbol?
toxic
harmful
oxidizer
poison
Which of the following is an example of acidic amino acid?
aspartic
glutamine
phenylalanine
serine
Which of the following is an example of achiral amino acid?
tyrosine
alanine
cysteine
glycine
Scenario:
An analyst aims to neutralize the given solution with a pH of 3.
Which of the following reagents is the most appropriate to use?
NaCl
H2SO4
distilled water
NaOH
Proteins are made of amino acids.
What type of bond is formed when 2 amino acids are joined together?
peptide bond
glycosidic bond
diester bond
nitrogenous bond
What type of functional group is formed from the linking of 2 amino acid?
amine
diester
amide
carboxamine
At which pH will casein precipitate?
6.1
5.6
4.6
4.9
TRUE OR FALSE: At the pH of the milk solution, casein is positively charged.
True
False
I don't know
:)
What acid was added to precipitate out the casein from Experiment 1A?
sulfuric acid
hydrochloric acid
acetic acid
tartaric acid
