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3 years ago

What type of solution would have a pOH of 7

Chemistry

2 answers:

Zanzabum3 years ago

4 0

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Answer: None of these, because it is a neutral solution

Explanation:

I hope this helped!

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Mice21 [21]3 years ago

4 0

Answer:

none of these

Explanation:

it should have a neutral solution

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Rus_ich [418]

Answer: a) The concentration after 8.8min is 0.17 M

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Explanation:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

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t = age of sample

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$8.8\times 60s=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\log\frac{0.25}{a-x}$

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$\frac{0.25}{a-x}=1.41$

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b) for concentration to decrease from 0.25M to 0.15M

$t=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\log\frac{0.25}{0.15}\\\\t=\frac{2.303}{6.7\times 10^{-4}s^{-1}}\times 0.20$

$t=687s$

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3 years ago

_____ are chemical substances that bind with a receptor and activate the receptor, much like a neurotransmitter does.

Viefleur [7K]

Answer:

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