CHEMISTRY HIGH SCHOOL

Calculate the pH of a solution in which [OH–] = 4.5 × 10–9M.8.35


6.11


4.94


5.65 - this one is correct

Answers

Answer 1
Answer:

Answer:

5.65 is the pH.

Explanation:

I am assuming that you are asking for confirmation on your answer. The answer is 5.65.

You would do:

[pOH] = -log[OH-]

          = -log[4.5*10^-9]

         equals about 8.3468

To find pH your would subtract the pOH from 14.

14-8.3468 = 5.65 << Rounded to match the answer choices.

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Answers

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Answers

The protons are located inside the nucleus and have a positive charge.

The electrons are located outside the nucleus and have a negative charge.

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Explanation:

  • Atom is defined as the smallest unit of a matter.
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Learn more about subatomic particles here:

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Protons and neutrons are located in the nucleas and makes up most of the mass. Electrons orbit around the nucleus in the electron cloud and have very little mass. Protons have a positive (+) charge, Neutrons have neutral (≠) charge, and Electrons have a negative (-) charge.

The place in the back of your eye that receives images is called the .retina,iris,cornea,pupil

Answers

retina receives the Images . 

Answer:

Its the retina

Explanation:

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Answers

Answer:

D

Explanation:

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B. atomic disintegration.
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Answers

Law of C. conservation of energy states that energy can neither be created nor destroyed, but can be changed from one form to another (such as from potential energy to kinetic energy).

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How many millimeters (mm) are in 25 meters? Also, pick the choice that shows the correct math work.O Q025 mm; because 25 m x
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= 0.025 mm
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O 25.000 mm; because 25 m x = 25,000 mm
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O 0.025 mm; because 25 m x
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Answers

Answer:

25000 mm: because 25 m × 1000 mm /1 m = 25000 mm

Explanation:

We can convert 25 m to millimetre (mm) by doing the following:

Recall:

1 m = 1000 mm

Therefore,

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25 m = 25000 mm

Thus, 25 m is equivalent to 25000 mm
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