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OverLord2011 [107]
3 years ago
14

What are the [H+] and [OH-] for a substance with a pH of 9.2? Show work please

Chemistry
1 answer:
Dafna1 [17]3 years ago
5 0

Explanation:

[H+]=10^-pH

[H+]=10^-9.2

[H+]=6.031x10^-10

[OH-]=1x10^-14÷[H+]

[OH-]=1x10^-14÷[6.031x10^-10]

[OH-]= 1.66x10^-5

im pretty sure this is right

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Two spherical objects with a mass of 7.73 kg each are placed at a distance of 1.11 m apart. how many electrons need to leave eac
aliina [53]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Equate the gravitational force to the electrostatic force: 

<span>KC²/D² = Gm²/D² → C = m√[G/K] = 7.6√[6.67E-11/9E9] = 6.54E-10 coulombs </span>

<span>Number of electrons N = 6.24E18*C = 4.083E9 electrons</span>

4 0
2 years ago
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maksim [4K]

Answer:

3.5 x 10^22 moles of carbon are there in a 0.70 g (3.5 carat) diamond.

Explanation:

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7 0
3 years ago
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Answer

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4 0
3 years ago
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bogdanovich [222]

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Explanation:

i hope that helps u try to figure it out a little bit sorry i couldn't find your answer i didn't have much to go off of

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