The subject of Chemistry requires some mathematical skills. The nature of the mathematical skills that accompany the new Chemistry A level means that, both for AS and A level, at least 20% of marks on examination papers will assess mathematical skills, within the context of the relevant chemistry. You are encouraged to see mathematical skills – almost all of which are mathematical ideas that they are familiar with from GCSE – as tools that can be applied in different chemical situations.
So...are we ready for week 6? Here goes www.youtube.com/watch?v=LdLQf1Ef9Ns There is the...... the....... and the ........ but you are the best!
Well done for getting to end of this six week transition course.
LESSONS ARE MONDAY PERIOD 4, TUESDAY PERIOD 4, THURSDAY PERIOD 3 AND FRIDAY PERIOD 2.
VIDEO CONFERENCED LESSONS ARE TUESDAY PERIOD 4, THURSDAY PERIOD 3 AND FRIDAY PERIOD 2. https://8x8.vc/warminster-school/dhankey
Go down the left hand side first, then complete the work on the right hand side in lesson 4.
TASK 1: Let us now look at concentrations and volume calculations.
TASK 2: Now I would like you to carry out a virtual experiment - READ AND USE LINKS BELOW.
The learning goals for the first one are:
- Describe the relationships between volume and amount of solute to solution concentration.
- Explain how solution colour and concentration are related.
- Predict how solution concentration will change for any action (or combination of actions) that adds or removes water, solute, or solution, and explain why.
- Design a procedure for creating a solution of a given concentration.
- Design and justify a procedure for changing a solution from one concentration to another.
- Identify when a solution is saturated and predict how concentration will change for any action or combination of actions where water or solute change.
TASK 3: Now you are going to learn about standard solutions, titrations and titration calculations. WORK THROUGH, PAUSE THE VIDEO AT THE WORKED EXAMPLE QUESTIONS AND ATTEMPT THESE YOURSELF. THEN CONTINUE TO PLAY THE VIDEO TO SEE IF YOU GOT THE RIGHT ANSWERS.
TASK 4: EXTENSION WORK - OPTIONAL. work through the following questions.
50.0g of sodium hydroxide is dissolved in water to make 1.5 dm3 of solution. What is the molar concentration of the solution?
TASK 6: Now let us look at molar volumes of gases and gas volume calculations.
To start - some GCSE revision - see video below.
Now look at:
TASK 7: Write an account or prepare a PowerPoint about Avogadros's law and gas volume calculations and molar volume calculations.
TASK 8: VIDEO CONFERENCING TASK - present your work - describe/discuss or share a PowerPoint with the rest of the class during a video conferencing lesson.