before we start, just a reminder:

1. you have been to the lab
   1. excercise you went to was safety
      1. you recorded what was given\observed
      2. any feedback about the lab, please let the dr or the supervisors know (it’s important we start together on it?)
      3. in the timetable, there will be “tutorials”
         1. first tutorial is week 6 → don’t wait until week 6 (week 7 is ICA)
            1. ASK QUESTIONS NOW, DONT DELAY LATER
2. the first few lectures are more of a revision
   1. this is a build up, the next week lectures we’ll start about more “new” things

don’t forget to check the references.!!!!!

the last one is a youtube video watch it!!!!!!!!!!!!!!!!!!!

objectives

• def of a solution
• ways to express concentration
• ….

what is a solution?

• composed of more than 1 material (solvent and solute; more than 1 solute in a solvent)
• keyword → substances to be mixed must be “non-reactive” → if they react, you end up with a product

the solution will have physical and chemical properties

when it comes to the 2 components

1. solute (can be 1 or more) e.g NaCl in water