# Chemical Forums

## Chemistry Forums for Students => High School Chemistry Forum => Topic started by: keerthana on September 30, 2020, 05:24:45 AM

Title: neutralization degree of acid
Post by: keerthana on September 30, 2020, 05:24:45 AM
I have seen in papers written that, the neuatrlization degree of acid is 30%, 40%, 80%. How to calculate these values?
Title: Re: neutralization degree of acid
Post by: chenbeier on September 30, 2020, 06:25:44 AM
Calculation of percentage of neutralization.

Concentration x  0,3 =  0,3c, then 0,7c is left.

You have 1 mol acid add 0,3 mol base then 30% is neutralized. 0,7 mol is left.
Title: Re: neutralization degree of acid
Post by: keerthana on September 30, 2020, 07:08:05 AM
Polymer was synthesized using monomer 30wt %, crosslinker 0.3wt % and initiator 2wt %. This was given. Now how to calculate them individually to measure the corresponding quantities for preparing the mixture?
Title: Re: neutralization degree of acid
Post by: chenbeier on September 30, 2020, 08:08:17 AM
This is a total different topic, nothing to do with neutralization.

1 kg product contain 30 %wt. = 300 g Monomer, 0,3 %wt. = 3 g crosslinker and 2 % wt. = 20 g Initiator. What is the rest of the product.
Title: Re: neutralization degree of acid
Post by: keerthana on September 30, 2020, 09:36:44 AM
The rest of the product was not mentioned in the paper. I have few comments to add on it. They are calculating each component proportion based on weight percentage. Have you come across moles percentage.
For example, if have monomer with moles 200, then crosslinker = 2% of moles of acid = 0.02*200 = 4 moles. So now I will add 4 moles of crosslinker to monomer solution. I doubt whether we can mix the various components for polymer synthesis based on moles percentage indeed weight percentage?
Title: Re: neutralization degree of acid
Post by: chenbeier on September 30, 2020, 09:53:28 AM
It is written % w.t. and that is mass percentage.
Title: Re: neutralization degree of acid
Post by: keerthana on September 30, 2020, 01:23:12 PM
That is in mass%. I am asking can we use moles % instead of mass %. Is that measurement acceptable. I am doubting since I have never seen anywhere stating the calculations in moles%. Can I use moles% in my study
Title: Re: neutralization degree of acid
Post by: chenbeier on October 01, 2020, 07:54:21 AM
You can do if you know the molar mass of each.
Title: Re: neutralization degree of acid
Post by: keerthana on November 10, 2020, 10:45:35 AM
I read in the paper that neutralization ratio is defined as the ratio of moles of acid to the moles of base. Or it is vice versa ratio. Can someone clarify this?
Title: Re: neutralization degree of acid
Post by: chenbeier on November 10, 2020, 11:53:59 AM
It depends what do you determine. Do you have a sample of acid and you use a base to determine the concentration  of the acid, or do you have a base and use an acid to get the amount of the base.
Title: Re: neutralization degree of acid
Post by: keerthana on November 10, 2020, 10:20:09 PM
I have a weak acid. I am neutralizing this with a strong base NaOH. I want to know the degree of neutralization. How it can be calculated.
Title: Re: neutralization degree of acid
Post by: billnotgatez on November 11, 2020, 12:33:54 AM
You might want to read the lectures on
https://www.chembuddy.com/ (https://www.chembuddy.com/)
to expand your knowledge on acids and bases.
Title: Re: neutralization degree of acid
Post by: Borek on November 11, 2020, 03:26:29 AM
I want to know the degree of neutralization. How it can be calculated.

From a neutralization stoichiometry. 100% neutralization is when all acidic protons reacted with added base.