AQA Required Practical - Measuring the rate of a reaction by loss of mass
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- Опубликовано: 28 май 2016
- AQA Required Practical for GCSE combined science or chemistry. Investigate how changes in concentration affect the rates of reactions by both measuring the volume of a gas produced and monitoring a change in colour or turbidity.
Edexcel Core Practical
Practicals are 15% of your exam grade, this could be the difference between a grade 4 and a grade 5 or the difference between grade 7 and grade 9. There isn’t a large amount of content but there are a lot of skills that can be tested, to help you with this I’ve made videos of all the practical and written a workbook full or exam style questions.
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Disclaimer; You should not carry out any of these practical’s without carrying out a full risk assessment of your own first.
I am human, and I make mistakes, please point out any that you find and there is no need to follow that with a load of abuse.
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You are such an empowering woman, empowering women to love science. I feel as though we are well under represented in the science community! Good on you!
Oh my good, I love your videos. You inspired me to write this comment and talk about how well I did on my exam. I got an A!!!!
Thank you so much, I love your cat by the way.
Also you remind me of my SST teacher, I kinda hate her but your different >:D
I just love how you help us with your videos!!
I really love the paw and maybe next time you can improve on your writing a bit more.
I love it but the arrows just hurts my eyes.
Thank you so much.
Your my inspiration.
yess she's so good i dont have any motivation to study and now im sat down at my desk with my cgp guide and my notes ready to study and get ahead for this exam ( practicals are so hard )
this video really helped me a lot in designing experiment. thank you ！！！
If they ask to calculate the total loss in mass of the contents from the graph how are you going to do that
Thank you so much, you are just amazing x
Happy to help!
1:52 2:22 2:52 3:22 3:52 4:22 4:52 5:22
Could you please make a video on tips on how to answer investigation questions. So when they ask for variables or a reason why a specific instrument was used? Thank you!
+TheGirlWithTheGlasses try these ruclips.net/p/PL7O6CcKg0HaFLESPNXVhGmMKP1hD-euUa
shut up nerd
Is accurate the same as precise? So if they said, why would you use a data logger instead of a thermometer could you say it is more precise?
+jg moore accuracy is the difference between the measurement and the real value, precise is the difference between measurements made
So you couldn't say that a datalogger is more precise
+jg moore accurate is better
ok
Why does the mass reduced with time
oh bc the fizz slowly stops?
NOO IM KINDA RIGHT AND WRONG ITS BC OF THE CARBON DIXOIDE AT 2.24
2:24
Carbon and oxygen atoms are used to make carbon dioxide, carbon dioxide is a gas so it is able to escape the mixture. So you are losing the mass of those carbons and oxygens.