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aivan3 [116]
3 years ago
8

A solution is prepared from 8 grams of acetic acid (CH2CO2H) and 725 grams of water. What is the molarity of this solution?

Chemistry
2 answers:
lisabon 2012 [21]3 years ago
6 0

Answer:

0.19 m

Explanation:

Just took the test, this is correct :)

Andrews [41]3 years ago
4 0
Hello!

First, we can assume the density of water to be 1 g/mL, so the volume of water would be 725 mL. The density of Acetic Acid (Pure) is 1,05 g/mL so 8 grams would represent 7,61 mL

Now we can apply the following conversion factor to calculate the molarity of the solution, using the molar mass of Acetic Acid:

[CH_3CO_2H]=\frac{8 g_{CH_3CO_2H}  }{725 mL + 7,61 mL}* \frac{1000 mL}{1 L}* \frac{1 mol_{CH_3CO_2H} }{60,05 g_{CH_3CO_2H} }

[CH_3CO_2H]=0,1818 M

So, the concentration of acetic acid would be 0,1818 M

Have a nice day!
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