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Sloan [31]
3 years ago
5

What is the the atomic number for oxygen

Chemistry
1 answer:
umka2103 [35]3 years ago
5 0
Atomic number for oxygen is 8
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Calculate the % dissociation of 0.10 M solution of acetic acid (pKa = 4.75)
madreJ [45]

Given :

Molarity of acetic acid solution, M = 0.10 M.

pKa of acetic acid, pKa = 4.75 .

To Find :

Percentage dissociation of 0.10 M solution of acetic acid.

Solution :

We know, pK_a = -log\  K_a

Taking antilog both side, we get :

K_a = 1.78\times 10^{-5}

Since, acetic acid has 1 hydrogen atom to loose , so it is a monoprotic acid.

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Hence, this is the required solution.

3 0
3 years ago
Give the major product formed when phenol is heated with concentrated H2SO4 and SO3. (There is more than one correct answer, but
iris [78.8K]

Answer:

See image attached and explanation

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The reaction of phenol with SO3/H2SO4 is an electrophilic reaction. The electrophile attacks portions of high electron density in the substrate phenol.

The -OH group activates phenol towards electrophilic substitution at the ortho and para positions, hence the product(s) formed in this reaction(only one product is shown here as required by the question).

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