# data[].attributes.headline
                                           Titrations

# data[].attributes.subject
                                           Titrations

# data[].attributes.body
No please don't get so discouraged after seeing it. Like Luis Fonsi and Farruko once said "Vamos a darle despacito"

# data[].attributes.body
Relax and breathe maybe even do a little dance before starting. Let us begin shall we. Read the entire problem and write down the information it contains.

# data[].attributes.body
An analytical chemist is titrating 241.3mL of a 0.07900M solution of ethylamine C2H5NH2 with a 0.8500M solution of HIO3. The pKb of ethylamine is 3.19. Calculate the pH of the base solution after the chemist has added 10.2mL of the HIO3 solution to it.

Calculate the pH before equivalence?
At equivalence?
After equivalence?

Its a lot to digest but stay with me here

# data[].attributes.body
So basically the problem is asking for the pH at the equivalence point.
After equivalence and before equivalence?
Perfect we know what its asking three different questions relating to the pH of the solution.

# data[].attributes.body
We can see that it is a titration of strong acid (HIO3) with weak base (C2H5NH2).

First we will be solving pH for before equivalence

Equivalence point is a point where all acid is neutralized by base.

# data[].attributes.body
Molarity of Acid= Ma = 0.85M              HIO3     (nf=1)
Volume of Acid= Va ? mL

Molarity of base=Mb= 0.079M             C2H5NH2  (nf=1)
Volume of base= Vb=241.3mL

eq. of acid = eq of base (M x V x nf)
0.85 x Va= 241.3 x 0.079
Va= 22.43mL

# data[].attributes.body
At equivalence point only salt is present to amionic hydrolysis

# data[].attributes.body
We have all the information for pH.

# data[].attributes.body
Wow after so much work and effort to confront this horror you might want to rest, huh?
Same here

# data[].attributes.body
If you follow these steps you can easily solve titration problems. Hopefully you did understand this expalnation