This discussion is now closed.
Check out other Related discussions
- a level chemistry
- Titrations
- Back-titration question
- urgent help.
- Transition metal titration - A-level Chem help!
- a level chemistry
- Btec applied science unit 2
- Titration questions
- Etha
- Hardest GCSE chemistry topic for you?
- Titration paper
- gcse chemistry help
- hard titration alevel chem Q!
- Chemistry Calculation Question
- Kc Titration Question
- Indicator colour question.
- Titration and Moles question
- Redox reaction and titration
- As level / a level chemistry concentration help!!
- AQA A Level Chemistry REDOX titration q
Back Titration Help
Hey, basically i'm stuck on the calculation on my back titration.
Here's my data:
10cm3 aspirin solution to 40cm3 0.2moldm-3 NaOH (Refluxed that)
then i used 20cm3 and titrated it with 0.1moldm-3 HCL.
The values i got were: 14.2 on average
How do I work out the total number of grams within the aspirin solution to begin with? The ratio of NaOH - Aspirin is 2:1, ie 2 moles of NaOH hydrolyse 1 moles of aspirin.
I've figured out 0.0014 Moles were used to neutralise the excess NaOH (HCL titration). Also, 0.008 moles were used to hydrolyse the aspirin to begin with....but apart from that? help please.
Here's my data:
10cm3 aspirin solution to 40cm3 0.2moldm-3 NaOH (Refluxed that)
then i used 20cm3 and titrated it with 0.1moldm-3 HCL.
The values i got were: 14.2 on average
How do I work out the total number of grams within the aspirin solution to begin with? The ratio of NaOH - Aspirin is 2:1, ie 2 moles of NaOH hydrolyse 1 moles of aspirin.
I've figured out 0.0014 Moles were used to neutralise the excess NaOH (HCL titration). Also, 0.008 moles were used to hydrolyse the aspirin to begin with....but apart from that? help please.
Related discussions
- a level chemistry
- Titrations
- Back-titration question
- urgent help.
- Transition metal titration - A-level Chem help!
- a level chemistry
- Btec applied science unit 2
- Titration questions
- Etha
- Hardest GCSE chemistry topic for you?
- Titration paper
- gcse chemistry help
- hard titration alevel chem Q!
- Chemistry Calculation Question
- Kc Titration Question
- Indicator colour question.
- Titration and Moles question
- Redox reaction and titration
- As level / a level chemistry concentration help!!
- AQA A Level Chemistry REDOX titration q
Latest
Trending
Last reply 1 week ago
Im confused about this chemistry question, why does it form these productsTrending
Last reply 1 week ago
Im confused about this chemistry question, why does it form these products
