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2 years ago

Which of the following accounts for the differences among the various amino acids

Chemistry

1 answer:

g100num [7]2 years ago

7 0

Answer:

The correct option is: b. the side chain

Explanation:

Amino acids are biomolecules that contain an alpha-carbon (α-C) attached to two functional groups- carboxyl group (-COOH) and amine group (-NH₂), and an organic side chain (-R).

The carboxyl and amine functional groups are common in all amino acids but the side chain is distinctive to each amino acid.

Thus the amino acids can be easily classified on the basis of the properties of this organic side chain.

Therefore, the various amino acids have different side chains.

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Are the relationships in group 7a consistent with the periodic trend that you have been studying

morpeh [17]

what is interfacial tension in liqui liquid extraction?

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2 years ago

In an acid-base titration, a student uses 21.35 mL of 0.150 M NaOH to neutralize 25.00 mL of H2SO4. How many moles of acid are i

GalinKa [24]

Answer: There are 0.006 moles of acid in the flask.

Explanation:

Given: $V_{1}$ = 21.35 mL, $M_{1}$ = 0.150 M

$V_{2}$ = 25.0 mL, $M_{2}$ = ?

Formula used to calculate molarity of $H_{2}SO_{4}$ is as follows.

$M_{1}V_{1} = M_{2}V_{2}$

Substitute the values into above formula as follows.

$M_{1}V_{1} = M_{2}V_{2}\\0.15 M \times 21.35 mL = M_{2} \times 25.0 mL\\M_{2} = 0.1281 M$

As molarity is the number of moles of a substance present in a liter of solution.

Total volume of solution = $V_{1} + V_{2}$

= 21.35 mL + 25.0 mL

= 46.36 mL (1 mL = 0.001 L)

= 0.04636 L

Therefore, moles of acid required are calculated as follows.

$Molarity = \frac{no. of moles}{Volume (in L)}\\0.1281 M = \frac{no. of moles}{0.04635 L}\\no. of moles = 0.006 mol$

Thus, we can conclude that there are 0.006 moles of acid in the flask.

3 0

2 years ago

How is Hess's law used to measure enthalpy of a desired reaction?

Morgarella [4.7K]

Answer:

Explanation:

I hope this is correct

6 0

2 years ago

Jill and George both push on the same cart with 20 units of force,but in opposite directions.What will happen to the cart

Anna [14]

Explanation:

It is given that, Jill and George both push on the same cart with 20 units of force, but in opposite directions.

We know that when two forces are acting in opposite direction, they cancel out each other.

Net force in this case = +20 N - 20 N = 0

It means the net force is 0. As a result, the cart will not move. The forces acting on the cart are balanced.

6 0

2 years ago

Carlos has a 1.2 meter long piece of wood. He wants to cut it into 3 equal lengths. How long should each piece be in millimeters

zhenek [66]

There are 1,000 mm in a meter so times 1.2 by 1,000 and you get 1,200.
Now since he wants it in three equal pieces divide 1,200/3 and you get 400.
So your answer is: 400 mm

6 0

2 years ago