3 years ago

A- south B- north C-west D- east Help ASAP no links or I’m reporting

Chemistry

1 answer:

Agata [3.3K]3 years ago

5 0

Answer:

east

Explanation:

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This data was collected after conducting an experiment about the amount, in liters, of water a specific plant needs per month. A

Radda [10]

ANSWER:

all of them

Explanation:

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A common chemicals used as a rising agent

Len [333]

I believe the correct answer is 84.007 g/mol hope this helps

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2 years ago

If Maria winks exactly 5 times every minute while she is awake and she sleeps exactly 8 hours a day, how many times does Maria w

irina1246 [14]

24 minus 8 is 16
5 times 60 is 300
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3 years ago

Calculate the % dissociation of 0.10 M solution of acetic acid (pKa = 4.75)

madreJ [45]

Given :

Molarity of acetic acid solution, M = 0.10 M.

pKa of acetic acid, pKa = 4.75 .

To Find :

Percentage dissociation of 0.10 M solution of acetic acid.

Solution :

We know, $pK_a = -log\ K_a$

Taking antilog both side, we get :

$K_a = 1.78\times 10^{-5}$

Since, acetic acid has 1 hydrogen atom to loose , so it is a monoprotic acid.

Now, percentage dissociation of monoprotic acid is given by :

$\alpha = \sqrt{\dfrac{K_a}{C}}\\\\\alpha =\sqrt{ \dfrac{1.78\times 10^{-5}}{0.1}}\\\\\alpha = 0.0133\times 100 = 1.33 \%$

Hence, this is the required solution.

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3 years ago

Can someone explain to me what numbers are acidic, base, or neutral on a ph scale?

EastWind [94]

Answer:

7 is neutral, anything lower is acidic and anything higher is alkaline

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