The answer is C. Here is the work:
<span>Moles=molarity * volume
2.5 * 0.5 = 1.25mols of NaCI
Mm of NaCI= 58.442468/mol
Multiply the moles by the Mm and you get the grams
1.25 * 58.442468 =73.1g
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Answer:
The fingernails and toe nails protect the nerve endings at the ends of the finger and toes
Answer :
Explanation: Glutamine a amino acid which have 2 protonable groups that is and having 2 pKa's.
This amino acid has an extra amide group () group which is not protonable.
The structures with their pKa values are provided in the image below.
pI or isoelectric point is the pH at which the amino acid have no net charge.
In this case, structure B has a net 0 charge, therefore it will have a pI present between and .
pKa values of glutamine are:
pI will be
pI = 5.65
5=d
7=g
Sorry, that's all I know for sure