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11 Dec 2019

Calculate the molar mass for each of the following:

Part A: KCl, salt substitute

Express your answer to two decimal places and include the appropriate units.

Part B: C6H5NO2, niacin (vitamin B3) needed for cell metabolism.

Express your answer to two decimal places and include the appropriate units.

Part C: C19H20FNO3, Paxil, antidepressant.

Express your answer to one decimal place and include the appropriate units.

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Jamar Ferry
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13 Dec 2019

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Acrylic acid (C3H4O2) (Figure 1) is used in the manufacture of paints and plastics. The pKa of acrylic acid is 4.25.

Part A

Part complete

Calculate the pH in 0.150 M acrylic acid.

Express your answer using two decimal places.

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Part B

Part complete

Calculate the concentration of H3O+ in 0.150 M acrylic acid.

Express your answer to two significant figures and include the appropriate units.
pH =

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Part C

Part complete

Calculate the concentration C3H3O?2 in 0.150 M acrylic acid.

Express your answer to two significant figures and include the appropriate units.
[H3O+] =

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Part D

Part complete

Calculate the concentration of HC3H3O2 in 0.150 M acrylic acid.

Express your answer to three significant figures and include the appropriate units.
[C3H3O?2] =

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Part E

Part complete

Calculate the concentration of OH? in 0.150 M acrylic acid.

Express your answer to two significant figures and include the appropriate units.
[C3H4O2] =

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Part F

Part complete

Calculate the percent dissociation in 0.0460 M acrylic acid.

Express your answer to two significant figures and include the appropriate units.
[OH?] =

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Percent dissociation =

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