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Llana [10]
3 years ago
6

1What is ""Fremy's salt""? Write the molecular formula of Fremy's salt. Write the structure of the product obtained from phenol.

Chemistry
1 answer:
EastWind [94]3 years ago
5 0

Answer and Explanation:

The Fremy salt is a chemical compound its chemical name is disodium nitrosodisuphonate

The molecular formula of the Fremy salt is K_2NO(SO_3)_2

When phenol is treated with Fremy salt in presence of water then benzoquinone is formed

C_2H_5OH\rightarrow C_6H_4O_2 ( in presence of Fremy salt and water)

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Calculate the pH of the following:
Brums [2.3K]

The pH can be defined as the negative logarithm of the hydrogen ion concentration of the solution.

<h3>What is the pH?</h3>

What we call the pH can be defined as the negative logarithm of the hydrogen ion concentration of the solution. We are aware that we can use the relation [H+]  [OH-]  = 1 * 10^-14 to handle the enormity of this problem.

Now, let us go about solving the problems;

1. pH = -log(1 x 10-7) = 7

2.  [H+]=  1 * 10^-14/ 1 x 10^-3

pH =  -log(  1 * 10^-11)

pH = 11

3. pH = -log( 1 x 10^-2)

pH = 2

4. pH = -log(  1 x 10^-10)

pH = 10

5.  [H+]=  1 * 10^-14/ 1 x 10^-8

[H+]=  1 * 10^-6

pH = 6

Learn more about pH:brainly.com/question/1528974

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6 0
2 years ago
BALANCE THIS EQUATION:<br> C4H10 + O2 = C02 + H20
Lostsunrise [7]

Answer:

{ \rm{C _{4} H_{10}+  \frac{13}{2} O _{2} = 4C0 _{2} + 5H _{2}0}} \\

5 0
3 years ago
The first-order rate constant for the decomposition of N2O5:
kifflom [539]

Answer:

0.0055 mol of N2O5 will remay after 7 min.

Explanation:

The reaction follows a first-order.

Let the concentration of N2O5 after 7 min be y

Rate = Ky = change in concentration of N2O5/time

K is rate constant = 6.82×10^-3 s^-1

Initial concentration of N2O5 = number of moles/volume = 2.1×10^-2/1.8 = 0.0117 M

Change in concentration = 0.0117 - y

Time = 7 min = 7×60 = 420 s

6.82×10^-3y = 0.0117 - y/420

0.0117 - y = 420×6.82×10^-3y

0.0117 - y = 2.8644y

0.0117 = 2.8644y + y

0.0117 = 3.8644y

y = 0.0117/3.8644 = 0.00303 M

Number of moles of N2O5 left = y × volume = 0.00303 × 1.8 = 0.0055 mol (to 2 significant digits)

5 0
3 years ago
Write a short paragraph that explains the centrat idea of the article​
Vesnalui [34]

Question:

What's the article about?

8 0
2 years ago
C3H8 + 2O2 → <br> I don’t known what this equation reacts to make
djyliett [7]
It is a combustion reaction. C3H8 will react with oxygen to form carbon dioxide and water.
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