What is the mass in grams of 13.2 amu?

1 answer:

3 0

Amu or also known as atomic mass unit is a SI unit that is used in chemistry to identify the total of the mass of neutrons and protons. In this case,a carbon-12 has a mass of amu. amu is equivalent to grams per mole. In this case, the mass of 13.2 amu is 13.2 grams per mole

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For each of the bonds listed, tell which atom is more negatively charged a. C--H b. C--N c. C--S d. C--O

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Explanation:

The atom is considered to be more electronegative , when it has the tendency to get a slight negative i.e. , delta negative charge on it , and the other atom gets a delta positive charge .

In the periodic table ,

As we go left to right in the periodic table , the electronegativity increases ,

and

As we go top to bottom , the electronegativity decreases .

Hence , from the option given in the question ,

a. C--H , the electronegativity of both the atom is almost the same , but looking at the treads of the periodic table , Carbon is more electronegative than hydrogen .

b. C--N , the electronegativity of both the atom is almost the same , but looking at the treads of the periodic table , nitrogen is more electronegative than Carbon .

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hydrolysis of decapeptide P with the enzyme trypsin affords the following fragments: Glu-Gly-Lys, Gln-Val-Ile, Ala-Ser-Phe-Lys.

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Answer:

The sequence of an amino acid P is:

Glu-Gly-Lys-Ala-Ser-Phe-Lys-Gln-Val-Ile

Explanation:

Fragments obtained on hydrolysis of decapeptide P by the action of an enzyme named trypsin:

Glu-Gly-Lys,
Gln-Val-Ile
Ala-Ser-Phe-Lys

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Lys-Gln-Val-Ile,
Glu-Gly-Lys-Ala-Ser-Phe

In order to determine the sequence of protein P , we will arrange fragments in such a way so that common fragments or the common parts of fragments should come under each other.

On arranging these fragments :

Glu-Gly-Lys-Ala-Ser-Phe

Glu-Gly-Lys

Ala-Ser-Phe-Lys

Lys-Gln-Val-Ile

Gln-Val-Ile

The sequence of an amino acid P is:

Glu-Gly-Lys-Ala-Ser-Phe-Lys-Gln-Val-Ile

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