GCSE Chemistry - Moles, Concentration & Volume Calculations #29
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- čas přidán 29. 01. 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
If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
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Amadeus & Tom
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I recently fell ill and had to miss some classes, so I spent time looking at questions I found difficult. I never really comment on these types of videos as they usually just refresh my memory or contribute to my foundation of future knowledge. Though, this video in particular helped me understand something I immensely struggled with, even when being taught by three different chemistry teachers. You explain every little detail so thoroughly, even giving reasons behind why we use such formulae or units instead of just explaining the method. I can tell you that this really helps, as it's much easier to do something if you know exactly WHY you're doing it. I can't thank you enough for the way that you attend to difficult topics like these, and I can now confidently say this'll be the first channel I go to for any misunderstood topics of mine. Keep it up :)
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Same, but a year later your comment
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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
how it was?
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Moles per dm3 can also be written as moldm^-3
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How do you make these animations?
Like which software do you use
can you please give more complex problems on moles, concentration and volume calculations sir.
fr
The penny has finally dropped after the 10th time watching this...thank you😊
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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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?
1 hour before my chemistry test 🤭🫠
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How did it go?
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Is this for Triple science only or is is also for combine higher
How can one explain such a complicated topic so clearly.
You dilute a substance to decrease the concentration. What is it called when you increase the concentration?
Bro I got all answers of my questions nice
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?
@JESLYN NEO (Student) bro u replied to that guy 4 months later to when he needed it, he aint getting helped mate.
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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)
@@sakeenazahragulzar Chill the fuck out, attention ki bhook hai kia?
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5:19 how do u know which moles to use
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The exam it tomorrow I'll get back to you with what come of this 😂
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Is it 1000/800 or 800/1000? I'm really confused would be glad if someone pointed my confusion out🙏
800/1000