GCSE Chemistry - Moles, Concentration & Volume Calculations #29
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- Опубліковано 29 січ 2020
- This video covers:
- How to use the moles = concentration x volume equation
- A worked example using the above equation and molar ratios
Exam board specific info:
AQA - Higher tier only
IGCSE Edexcel - Higher tier and separate science
Edexcel - Higher tier and separate science
OCR 21st Century - Higher tier only
OCR Gateway - Higher tier and separate science
Related videos/topics:
Maths Playlist:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video
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Amadeus & Tom
Thank you
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Moles per dm3 can also be written as moldm^-3
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I got my paper 1 tomorrow hopefully I do well looking this up last minute because i still dont get it
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Edit: I rematched the video & solved a similar problem and finally got it. Thanks man
Hello i just did the chemistry paper and it had a titration question and i am now confused on that isnt concentration = mass/volume ? I'm confused on this equation concentration = moles/volume?
can you please give more complex problems on moles, concentration and volume calculations sir.
fr
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I have one question. at last in the video when you do 0.0075 divide by 0.025 you get a answer 0.375 so do we write the whole number or we round it up which will be 0.4, but in the video it is just 0.3
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Great video! I just have a question why did you divide the 0.015 by 2? What is the purpose of molar ratio? Do we didvide with the largest number in the molar ratio?
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@JESLYN NEO (Student) so if the ratio was let's say 3:2 would we divide it by 3 since that's the number of the known substance?
@@SD-qb6ft if the ratio was 3:2 and the unknown substance you were trying to find was the 2 then you could divide it by 3 ( to find one part) and then multiply by 2 (to find the 2 parts)
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You dilute a substance to decrease the concentration. What is it called when you increase the concentration?
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5:19 how do u know which moles to use
1 hour before my chemistry test 🤭🫠