Unit 2- Practical Scientific Procedures and Techniques
Other
unit 2 assignment chemistry
51 views 0 purchase
Course
Unit 2- Practical Scientific Procedures and Techniques
Institution
PEARSON (PEARSON)
Book
AQA GCSE Chemistry Student\'s Book
unit 2 assignment of concentrate on standards year 3 application science chemistry. it has 5 practical writeups the aim, equipment, method all in one document for college student.
BTEC assignment
Preparation of a standard solution of sodium carbonate lab report assignment



Titration between hydrochloric acid and sodium carbonate using an indicator



Calibration of the pipette for titratio...
All for this textbook (2)
Written for
BTEC
PEARSON (PEARSON)
Applied Science 2016 NQF
Unit 2- Practical Scientific Procedures and Techniques
All documents for this subject (361)
Seller
Follow
fatimaofiani
Content preview
Unit 2
Concentrate on keeping up your standards
Task 1
Practical 1
Title: preparation of a standard solution of sodium carbonate
Aim: to prepare the 250 cm3 of N/10 standard solution of sodium carbonate.
Equipment:
• Chemical balance
• Watch glass
• Weight box
• 250ml beaker
• Stirring rod
• 250ml measuring flask
• Wash bottle
• Weighing tube
• Sodium Carbonate
• Funnel
• Funnel stand
• Distilled water
• Weighing boat
• Pasteur pipette
, Risk assessment:
• Wearing lab coats, gloves, goggles.
• Wash hands after potentially hazardous material and before leaving the laboratory
• Chemical/Procedure hazard
• reduce risk disposal
• Sodium Carbonate Irritant
Method:
• Weigh an empty weighing boat and record its mass in the table (see reading below).
• Take the boat off the balance and add a little sodium carbonate to the boat, using a spatula, place the
boat back on the balance and check the mass, when you have added about 1.5g (grams) of sodium
carbonate, record the mass accurately.
• Transfer the sodium carbonate to a 100cm3 (cubic centimetres) beaker. 4. Now reweigh the boat
recording its mass in the table.
• Add about 75cm3 of distilled water to the beaker containing the sodium carbonate and stir with a
glass rod to dissolve.
• Transfer the solution to 250 cm3 volumetric flask using a funnel, washing down the stirring rod with a
small amount of distilled water from a wash bottle. Rinse the beaker into the funnel again using
distilled water from the wash bottle, and finally rinse the funnel and remove it before making up to the
mark on the volumetric flask with distilled water. Add the last few drops of distilled water very
carefully using a Pasteur pipette.
Practical 2
Title: Titration between hydrochloric acid and sodium carbonate using an indicator
Aim: Titration between hydrochloric acid and sodium carbonate using an indicator to find the concentration of
chloric acid
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 or Stuvia-credit 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 fatimaofiani. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.92. You're not tied to anything after your purchase.