Preparing a solution of sodium Chloride

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Chemistry  Preparing a chemical solution

Portfolio Evidence – (Lukas Chamberlain)

Contents

1. Introduction: Type of chemical analysis to be carried out

2. Safety points

3. Materials and methods

4. Results

5. Evaluation

6. Discussion of vocational implications

Portfolio Evidence – (Lukas Chamberlain)

Introduction

One of the most common practices in the laboratory is accurately to prepare chemical solutions in the laboratory.

I was given the task to prepare a one mole solution of sodium chloride for a precipitate experiment.

The solution must be at a high level of accuracy to make sure the experiment works next week.

Safety Points

Sodium Chloride

  • Wear safety goggles
  • Do not eat
  • Use smallest amounts possible on a watch glass to prevent contamination of the bottle
  • Test for sodium last as the nichrome wire is difficult to clean afterwards
  • Wear suitable protective clothing
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If splashed in eyes:

In case of contact with eyes, rinse immediately with cold water and seek medical advice

If spilt on floor:

Scoop up and clean surface

If spilt on skin or clothing:

Wash off

Hazard sign reads:

Irritating

Method and Materials

  1. Using a set of scales I weighed out 14.625 grams of sodium chloride on a piece of filter paper
  2. I then transferred the sodium chloride in to a 250ml beaker.
  3. I then rinse the filter paper with distilled water to make sure that all ...

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