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enyata [817]
3 years ago
13

Which of the following amino acid functional groups will influence the pKa of an amino acid residue the least if it is on an adj

acent residue?A. -OH.B. -NH3.C. -CH3.D. -COOH.
Chemistry
1 answer:
Arte-miy333 [17]3 years ago
5 0

Answer:

C. -CH3

Explanation:

The pKa (acid dissociation constant) of an amino acid residue is primarily influenced by the functional groups attached to the adjacent end of the amino acid chain. The acidity of a functional group depends on how electronegative the functional group is. In the given functional groups' list, the functional group with the least influence on the pKa of the amino acid is the alkyl substituent (-CH3), because they have the least electron-withdrawing capacity.

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Answer :

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The lewis-dot structure image is shown below.

5 0
3 years ago
In the image above the ruler is measuring in centimeters. The blue cylinder falls somewhere between 2.7cm and 2.8cm according to
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The answer is below

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3 0
3 years ago
Unheated
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\frac{P_1V_1}{T_1}  =\frac{P_2V_2}{T_2}

<em>(With </em>P_1,V_1,T_1 <em>being initial pressure, volume and temperature; and</em>

<em />P_2,V_2,T_2<em> being the new values)</em>

<em />

We can move the units around in order to solve for P_2, which would look like this:

P_{2} =\frac{P_1V_1T_2}{V_2T_1}

Then we convert the Celsius temperature to Kelvin:

25 °C = 289 K

100 °C = 373 K

And now, we plug in all of the values and solve, with volume remaining as a constant:

P_{2} =\frac{(1.00 atm) (20.0 L) (373 K)}{(20.0 L) (298 K)} =

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7 0
4 years ago
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4 0
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