100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
unit 16 assignment 2 $9.14   Add to cart

Essay

unit 16 assignment 2

4 reviews
 483 views  4 purchases
  • Course
  • Institution
  • Book

unit 16 assignment which is done up to high standard i have achieved overall DISTINCTION.

Last document update: 6 year ago

Preview 1 out of 20  pages

  • June 15, 2018
  • June 15, 2018
  • 20
  • 2017/2018
  • Essay
  • Unknown
  • Distinction

4  reviews

review-writer-avatar

By: ryanclack2001 • 3 year ago

review-writer-avatar

By: wadeef • 4 year ago

review-writer-avatar

By: Almas2560 • 4 year ago

review-writer-avatar

By: hasibahomayoun • 5 year ago

avatar-seller
Unit 16: Chemistry for Biology Technicians
Task 1: P2
Carry out experiments to show the effect on the rates of reactions of changes
in concentration, particle size, temperature and presence of a catalyst?

Concentration:

Title:
Reaction between acid and thiosulphate

Introduction:
The purpose of this demonstration is to investigate the effect of sodium
thiosulfate concentration on the rate of reaction of sodium thiosulfate with
hydrochloric acid. The reaction, which produces solid sulfur, will be followed
by measuring the time needed for the reaction mixture to become opaque.
The results will be analysed graphically to determine the order of reaction is
the mathematical relationship between the reactant concentration and the
rate.

Apparatus:
• Stopwatch
• 10 cm3 water
• Measuring cylinder
• Cross paper
• Conical flask
• 5cm3 of bench hydrochloric acid
• 50cm3 of sodium thiosulphate
Method:
1. Measure 50cm3 of sodium thiosulphate solution in a measuring cylinder.
Then I dispensed it into a conical flask. I used the measuring cylinder
just for only thiosulphate to evade contamination.
2. On a white piece of paper, I draw a cross and placed the conical flask
over the cross.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

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 jebrailmuhammad26. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $9.14. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

80796 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$9.14  4x  sold
  • (4)
  Add to cart