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Lana71 [14]
3 years ago
9

Hello.......................​

Chemistry
1 answer:
VashaNatasha [74]3 years ago
3 0

Hello.....

Have a beautiful and joyful day ahead.

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Calculate the ph of a solution whose(oh^-) is 4.583*10^-5 mole dm cube (pkw=14)​
Sergeu [11.5K]

pH of solution = 9.661

<h3>Further explanation </h3>

pH is the degree of acidity of a solution that depends on the concentration of H⁺ ions. The greater the value the more acidic the solution and the smaller the pH.

pH = - log [H⁺]

So that the two quantities between pH and [H⁺] are inversely proportional because they are associated with negative values.

pOH=-log[OH⁻]

\tt pOH=-log[4.583\times 10^{-5}]\\\\pOH=5-log~4.583=4.339

pH+pOH=pKw

\tt pH=14-4.339\\\\pH=9.661

8 0
3 years ago
Gallium (atomic number 31) is in group 13 (IIIA). In addition to the s type electrons, it will have how many electrons in the 4p
qwelly [4]

Answer:

One electron is present in 4p energy sublevel.

Explanation:

Gallium element has symbol Ga with atomic number 31.

It is placed in group 13 and fourth period in the modern periodic table.

The electronic configuration of the element, gallium is -  

1s^22s^22p^63s^23p^63d^{10}4s^24p^1

As seen, from the configuration,

<u>One electron is present in 4p energy sublevel.</u>

3 0
3 years ago
What ozone layer do we live in
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What ozone layer do we live in?

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4. The cloud of interstellar dust and gas that forms a star is known as
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A sample of gas in a syringe has a volume of 9.66 mL at a pressure of
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The answer is 6.58mL or 0.00658L. How I got this answer step by step is included in the photo below. Hope this helps!

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