AS LEVEL CHEMISTRY 9701 PAPER 1 | May/June 2021 | Paper 13 | 9701/13/M/J/21 | SOLVED
19.7 هزار بار بازدید -
2 سال پیش
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I'm solving A Level Chemistry
I'm solving A Level Chemistry 9701 Paper 1 M/J 2021/13 in this video.
Hey everyone! In question 24, at 22:04, I made a mistake while explaining why option A was wrong. Combustion of 1 mol of ethanol gives 2 moles of CO2 and 3 moles of H2O. I wrote 1 mol of CO2 by mistake. So for option A, total moles of CO2 will be 5 rather than 4. So, the ratio of H2O:CO2 should be 9:5, which doesn’t match anyway, so A is wrong. D is the correct answer, I didn’t make a mistake while explaining that. Sorry about this mistake!
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00:00 Intro
00:23 Q1-10
10:50 Q11-20
17:52 Q21-30
28:01 Outro
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MS: https://caiepaperssolved.com/wp-conte...
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Examiner's Report:
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Hey everyone! In question 24, at 22:04, I made a mistake while explaining why option A was wrong. Combustion of 1 mol of ethanol gives 2 moles of CO2 and 3 moles of H2O. I wrote 1 mol of CO2 by mistake. So for option A, total moles of CO2 will be 5 rather than 4. So, the ratio of H2O:CO2 should be 9:5, which doesn’t match anyway, so A is wrong. D is the correct answer, I didn’t make a mistake while explaining that. Sorry about this mistake!
Support me on Patreon and unlock bonus perks!
Patreon: CAIEPapersSolved
00:00 Intro
00:23 Q1-10
10:50 Q11-20
17:52 Q21-30
28:01 Outro
QP: https://caiepaperssolved.com/wp-conte...
MS: https://caiepaperssolved.com/wp-conte...
Threshold: https://caiepaperssolved.com/wp-conte...
Examiner's Report:
Fill this form up for Question Paper Requests!
https://forms.gle/bJC4XoRC7AVT6UZHA
For more content, like the video and subscribe to the channel! Please let me know which papers you want me to solve next.
Follow me:
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2 سال پیش
در تاریخ 1401/02/17 منتشر شده
است.
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