MYTUTOR SUBJECT ANSWERS

175 views

A titration is carried out and 0.04dm^3 of sulphuric acid neutralises 0.08dm^3 sodium hydroxide of concentration 1mol/dm^3. Calculate the concentration of the sulphuric acid.

The first thing to do with this titration calculation is write the balanced symbol equation for the reaction. Using the knowlege that when an acid and base react a salt and water is produced we can write:

H2SO4 (aq)+ 2NaOH (aq) ---> Na2SO4 (aq)+ 2H2(l)

From the balanced symbol equation we can see that 1 mole of H2SO4 neutralises 2 moles of NaOH

The next thing to do is calculate the number of moles of sodium hydroxide that were used up in the reaction.

We use the equation: number of moles = concentration x volume

N =    1 mol/dm3   x 0.08dm3 = 0.08 moles of NaOH

The number of moles of H2SO4 used up in the reaction is therefore half of this (0.04 moles) since we established from the symbol equation that 1 mole of H2SO4 neutralises 2 moles of NaOH.

Finally we can calculate the concentration of H2SO4 by using the equation :

concentration = number of moles/ volume

c = 0.04mol/ 0.04dm3 = 1mol/dm3
 

Victor A. A Level Biology tutor, A Level Chemistry tutor, A Level -Pe...

5 months ago

Answered by Victor, a GCSE Chemistry tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

158 SUBJECT SPECIALISTS

£22 /hr

Appitha A.

Degree: Cancer Studies (Doctorate) - Kings, London University

Subjects offered: Chemistry, Maths+ 2 more

Chemistry
Maths
French
Biology

“My name is Appitha and i have recently finished a 4 year long PhD on Breast Cancer Imaging at King's College London. From a young age, i had the passion to help young people achieve their potential at school by providing one-to-one tu...”

MyTutor guarantee

£18 /hr

Tiarnan B.

Degree: MChem (Masters) - York University

Subjects offered: Chemistry, Maths+ 2 more

Chemistry
Maths
Geography
-Personal Statements-

“About Me: I am a student of Chemistry at the University of York studying for a masters degree and am a self-confessed science nerd! My goal is to give you the help you need, build your confidence and push you to be the best you can. A...”

£18 /hr

Eleni N.

Degree: Chemistry (Masters) - Edinburgh University

Subjects offered: Chemistry, Physics+ 2 more

Chemistry
Physics
Maths
Biology

“About Me: I am a Chemistry student at the University of Edinburgh, but I didn't always start out on this path. I spent my first two years at university persuing a  Biochemistry degree and I took every opportunity to do more science sub...”

About the author

Victor A.

Currently unavailable: for regular students

Degree: Biological Sciences (Bachelors) - Oxford, Merton College University

Subjects offered: Chemistry, Maths+ 2 more

Chemistry
Maths
Biology
-Personal Statements-

“Hello! About me I have just completed my first year studying Biological Sciences at Merton CollegeOxford and have had a wonderful time integrating Maths, Chemistry and Biology to understand living things. I am apersonable and en...”

MyTutor guarantee

You may also like...

Posts by Victor

A titration is carried out and 0.04dm^3 of sulphuric acid neutralises 0.08dm^3 sodium hydroxide of concentration 1mol/dm^3. Calculate the concentration of the sulphuric acid.

Describe how Carbon Dioxide is assimilated in the Calvin cycle.

Other GCSE Chemistry questions

What mass of CO2 will be produced when 50 g of CaCO3 decomposes?

I don't understand what exactly a mole is, could you please explain it to me?

What factors affect rate of reaction?

What is a catalyst?

View GCSE Chemistry tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok