Acids and Bases
#7

Calculate the pH of a solution of 1.116 g KOAc in 250 mL solution.

a

Calculate the number of moles present in 1.116 g KOAc.

0.0114 mol

b

Calculate the concentration of KOAc in mol/L.

0.456 mol/L
c

What is KOAc?

a salt

d

What happens when KOAc dissolves in water?

Click

e

What are the acid-base-properties of K+?

acid, weaker than water
f

What are the acid-base-properties of OAc-?

weak base

g

Calculate [OH-].

Click

h

Calculate pOH.

4.80

i

Calculate pH.

9.20

Complete solution

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