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Setler [38]
3 years ago
5

Materials with air pockets that decrease their density and prevent energy transfer are called:

Chemistry
1 answer:
vlabodo [156]3 years ago
6 0
D. compressors because it decreases density and compresses it. that makes it prevent energy transfer
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The pKa of chloroacetic acid is 2.9. If an organic chemist has a 0.10 M aqueous solution of chloroacetic acid at pH 2.4, what pe
Trava [24]

Answer:

The answer is given below.

Explanation:

We will consider the acid as HA and will set up an ICE table with the equilibrium dissociation of α.

AT pH 2.4 the initial H+ concentration will be 3.98^10-3 M

                      HA →              H+         +      A-

Initial concentration:  0.1    →  3.98 ^10-3       +      0

equilibrium concentration:  0.1(1-α) →   3.98 * 10-3 + 0.1α              0.1α

pKa of chloroacetic acid is 2.9

-log(Ka) = 2.9

Ka = 1.26 * 10-3

From the equation, Ka = [H+] * [A-] / [HA]

1.26 * 10-3 = (3.98 * 10-3 + 0.1α )* 0.1α / 0.1(1-α)      

Since α<<1, we assume 1-α = 1

Solving the equation, we have: α = 0.094

Since this is the fraction of acid that has dissociated, we can say that % of base form = 100 * α= 9.4%

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3 years ago
List the 3 mole equalities.
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12.000 g of 12c is one

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The types of bonds in ammonium chloride are​
Murrr4er [49]

Explanation:

Ionic bonds

Covalent bond

Vanderwaal force of attraction

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S 2<br> How many protons
serg [7]
16 protons
Explanation: S2-: proton number 16; nucleon number 32
There are 16 protons (from the proton number). If it was a neutral atom, there would be 16 electrons.
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3 years ago
Helppppppp! why should i use spr??
Viktor [21]

SPR can be used in order to do real time monitoring and to evaluate the advancement of compounds.

<h3>Why should we use SPR?</h3>

SPR provide information to evaluate whether or not compounds should advance to the next stage of investigation. It also provides real-time monitoring.

So we can conclude that SPR can be used in order to do real time monitoring and to evaluate the advancement of compounds.

Learn more about monitoring here: brainly.com/question/13163394

#SPJ1

6 0
2 years ago
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