I love the fact that someone is using Gmod as a medium to teach chemistry, I'm pretty sure it's working too since most of the stuff I've seen in these videos is so damn memorable.
22.7 is used in the new syllabus - starting to be taught September 2014. Therefore use 22.7 in the exams from May 2016 onwards, and 22.4 in exams before that date.
Could You explain on 6:26 the conversions going on in each line, I do not understand what is happening and was wondering if you could please clarify Mr. Thronley?
The ratio of the VOLUME of gases is the same as the ratio of the COEFFICIENTS which is the same ratio as the MOLES of gas. This is very handy since you can work out a lot of info from a little initial data. This is only true if gases are at same Temp and pressure. This works because one mole of any gas has the same volume as a mole of any other gas at the same T and P.
I would assume that as this is a new syllabus, it is for the students from '13-'15 (the year below you). Learn what you have been taught from your teachers this year
because the ratio between NO2 and H2O is 2:4, which is 1:2, so if 2 moles of NO2 has a volume of 227, then 4 moles of H2O has volume of 227*2, which is 454...i think..
i get that this is old but, it's a game called Garry's Mod, which its like a sandbox game with plenty of objects to use and a pretty good physics engine.
![S1.4.3 Molar Mass [SL IB Chemistry]](http://i.ytimg.com/vi/GnupW_IJ2nQ/mqdefault.jpg)
Because of this man I passed chem; thank you Mr. Thornley!!!!!
How much you got haha
I love the fact that someone is using Gmod as a medium to teach chemistry, I'm pretty sure it's working too since most of the stuff I've seen in these videos is so damn memorable.
22.7 is used in the new syllabus - starting to be taught September 2014. Therefore use 22.7 in the exams from May 2016 onwards, and 22.4 in exams before that date.
I got lost at 4:18.. How can moles and volume be the same, if one mole is 22.7dm3?
The numbers you get aren't the same, but the ratios between them are.
Could You explain on 6:26 the conversions going on in each line, I do not understand what is happening and was wondering if you could please clarify Mr. Thronley?
The ratio of the VOLUME of gases is the same as the ratio of the COEFFICIENTS which is the same ratio as the MOLES of gas. This is very handy since you can work out a lot of info from a little initial data. This is only true if gases are at same Temp and pressure.
This works because one mole of any gas has the same volume as a mole of any other gas at the same T and P.
Does your technique at 5:32 to calculate limiting reagent only work with gases?
Does this stand for the exams that are after this year?
ok soo.... my exam is tomorrow. is it 22.4 or 22.7? :S
I would assume that as this is a new syllabus, it is for the students from '13-'15 (the year below you). Learn what you have been taught from your teachers this year
thank you :)
No problem! Hope your exam was ok!
why is 4H2O 454 on 7:25??
because the ratio between NO2 and H2O is 2:4, which is 1:2, so if 2 moles of NO2 has a volume of 227, then 4 moles of H2O has volume of 227*2, which is 454...i think..
For the 6 dm3 of SO2 and 8 dm3 of O2 question: is n = v / 22.7 any useful? Or should it be done entirely using ratios?
This is probably what Garry's Mod was made for
Now its 22.7 :'D
Which is that program??
i get that this is old but, it's a game called Garry's Mod, which its like a sandbox game with plenty of objects to use and a pretty good physics engine.
isnt it 24dm3 now?
lol