This piece of work is to help with the P1, M1 and D1 Unit 26 Applied Science 2010 - My teacher has signed this assignment off which means that it does meet the grading criteria. Hope it helps, all the best.
Please take note that this document cannot be copied and I would appreciate if you respect ...
P1 – Compare measured values of enthalpy changes with standard enthalpy
changes:
M1 – Calculate enthalpy changes for reactons using standard enthalpy change
values from tables:
D1 – Evaluate the sources of error in practcal measurements:
Enthalpy changes of Neutralisaton:
Aim: To determine and calculate the enthalpy changes of neutralisaton from Hydrochloric acid
and Sodium Hydroxide.
Equipment:
- Measuring cylinder
- Hydrochloric acid (1 MOL)
- Sodium Hydroxide (1 MOL)
- Thermometer
- Spatula
- beaker
- stop clock
Method:
1. use the measuring cylinder to add 15ml of Sodium Hydroxide into a beaker.
2. Use a diferent measuring cylinder to measure out another 15ml of Hydrochloric acid to
avoid mixing of the two chemicals. Place it into a separate beaker.
3. Use a thermometer to measure the startng temperature of the Sodium Hydroxide.
4. Add the two chemicals together and start the stop clock.
5. Make sure to record the temperature in the intervals of 20 seconds for the period of 5
minutes. Use the results obtained to calculate the enthalpy change of neutralisaton.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller musix. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £5.49. You're not tied to anything after your purchase.