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Firlakuza [10]
3 years ago
15

Draw the complete structure of the following tetrapeptides (draw the ionized groups in the protonated form): 1) Met- Glu-Gly-His

; 2) Phe-Asp-Phe-Thr.

Chemistry
1 answer:
Charra [1.4K]3 years ago
6 0

Answer:

See attached picture.

Explanation:

Hello,

In this case, given that each amino acid is bonded via the peptidic bond (CONH) for each tetrapeptide we obtain the structures on the attached picture. Take into account that each tetrapeptide has an initial amino side and a ending carboxylic side.

Regards.

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It is difficult to press the football in water why?​
Sati [7]

Answer:

The ball you want to submerge displaces the water occupied in the ball's volume. ... In water the concrete has a buoyancy pressure force equal to the displaced liquid's weight and weighs only 120 pounds until it reaches the surface.

Explanation:

8 0
3 years ago
Write balanced net ionic equations and the corresponding equilibrium equations for the stepwise dissociation of the triprotic ac
Elza [17]

Answer:

H_3PO_4(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+H_2PO_4^{-}(aq); \ Ka_1

H_2PO_4^{-}(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+HPO_4^{-2}(aq); \ Ka_2

HPO_4^{-2}(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+PO_4^{-3}(aq); \ Ka_3

Explanation:

Hello!

In this case, since the phosphoric acid is a triprotic acid, we infer it has three stepwise ionization reactions in which one hydrogen ion is released at each step, considering they are undergone due to the presence of water, thus, we proceed as follows:

H_3PO_4(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+H_2PO_4^{-}(aq); \ Ka_1

H_2PO_4^{-}(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+HPO_4^{-2}(aq); \ Ka_2

HPO_4^{-2}(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+PO_4^{-3}(aq); \ Ka_3

Moreover, notice each step has a different acid dissociation constant, which are quantified in the following order:

Ka1 > Ka2 > Ka3

Best regards!

3 0
3 years ago
Which of the following is an example of using creativity while doing background research?
pantera1 [17]

Answer:

B

Explanation:

5 0
3 years ago
Read 2 more answers
2. What is the name of the compound AIPO?
Andru [333]

Answer:

Aluminum phosphate

Explanation:

7 0
3 years ago
For the energy diagram of the chemical reaction depicted here, which statement is the best conclusion?
34kurt

The reaction shown here is an exothermic reaction.

<h3>What is an exothermic reaction?</h3>

An exothermic reaction is one in which the energy of the reactants is greater than the energy of the products. This implies that energy is given out in the process. Whether a reaction is endothermic or exothermic shows in the nature of the reaction profile curve.

For an endothermic reaction, the part of the diagram that represents the energy of the products is higher than the part that represents the energy of the reactants. This is clear from the image attached here.

If we look at the reaction graph very well, we will observe that the energy of the reactants is far above that of the products. Thus it follows that the reaction shown here is an exothermic reaction.

Learn more about exothermic reaction:brainly.com/question/15765092

#SPJ1

3 0
2 years ago
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