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Ray Of Light [21]
3 years ago
10

What is the pH of a solution that contains a pOH of 7.9?

Chemistry
1 answer:
tatiyna3 years ago
7 0
PH and pOH are opposites, so pH can be determined by subtracting pOH from 14
pH = 14 - 7.9 = 6.1
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Explanation:

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5 0
2 years ago
What is the hydronium ion concentration of a 0.100 M acetic acid solution with Ka = 1.8 × 10-5? The equation for the dissociatio
evablogger [386]

Answer:

1.3×10⁻³ M

Explanation:

Hello,

In this case, given the dissociation reaction of acetic acid:

CH_3CO_2H(aq) + H_2O(l) \rightleftharpoons H_3O^+(aq) + CH_3CO_2^-(aq)

We can write the law of mass action for it:

Ka=\frac{[H_3O^+][CH_3CO_2^-]}{[CH_3CO_2H]}

Of course, excluding the water as heterogeneous substances are not included. Then, in terms of the change x due to the dissociation extent, we are able to rewrite it as shown below:

1.8x10^{-5}=\frac{x*x}{0.100-x}

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Regards.

8 0
3 years ago
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6 0
3 years ago
7. Describe the difference between a genetically modified organism (GMO) and an unmodified organism.
schepotkina [342]

Answer:

there

Explanation:

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GMO food has been genetically modified in some form, usually in a laboratory.

4 0
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Underneath the ocean floor, methane can exist as a solid known as methane hydrate. Methane hydrate forms when large amounts of m
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Methane is present in solid, liquid and gaseous form.

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8 0
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