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valina [46]
3 years ago
9

HELP!!!

Chemistry
2 answers:
posledela3 years ago
6 0

Answer: 6.34

Explanation:

pH is the measure of acidity or alkalinity of a solution.

Acids have pH ranging from 1 to 6.9 and bases have pH ranging from 7.1 to 14.Neutral substances have pH of 7.

First we have to calculate the pOH.

pOH=-\log [OH^-]

pOH=-\log (2.20\times 10^{-8})

pOH=7.66

Now we have to calculate the pH.

pH+pOH=14\\\\pH=14-pOH\\\\pH=14-7.66=6.34

Therefore the pH of the solution will be 6.34.

Volgvan3 years ago
3 0
<h3><u>Answer;</u></h3>

pH = 6.34

<h3><u>Explanation;</u></h3>

pH is given as -log{H+]

But;

pH + pOH = 14

However;

pOH = -log [OH-]

[OH-] =  2.20 × 10−8 M

Thus;

pOH = -log (2.20 × 10−8 M)

        = 7.66

But;

pH = 14 - pOH

     = 14 - 7.66

     <u>= 6.34 </u>

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5.451 X 10³ kg of sodium carbonate must be added to neutralize 5.04×103 kg of sulfuric acid solution.

<u>Explanation</u>:

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5 0
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What is the hydrogen ion concentration of a solution with pH=8.25 ?
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Answer:

The answer is

<h2>5.62 \times  {10}^{ - 9} \:  M</h2>

Explanation:

The pH of a solution can be found by using the formula

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From the question

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The hydrogen ion concentration of the solution is

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<u>Find antilog of both sides</u>

That's

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We have the final answer as

5.62 \times  {10}^{ - 9} \:  M \\

Hope this helps you

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