AS Chemistry P2 Prep.

[fatima 007]

Where can i find purification of copper?

 

[Hassi123]

the sulphur makes one bond with each oxygen hence two bonds, and then sulphur has six electrons in the outer shell so the remaining is 2 lone pairs

 

[angelgirl:)]

hmm confused..

SO2 has forms 2 bonds with each O and it has 1 lone pair...so it has 2 bond pairs and 1 lone pair...isnt it ?/

 

[Hassi123]

Where can i find purification of copper?

electrlysis? look in your book under electrolyisi

 

[Hassi123]

SO2 has forms 2 bonds with each O and it has 1 lone pair...so it has 2 bond pairs and 1 lone pair...isnt it ?/

2 lone pairs

 

[fatima 007]

I don't have a book. I study from my teacher's notes. He told us to study from o-levels electrloysis. But i dont have the notes

 

[lavanyamane]

Hello everybody! Okay so I have a question: Does CH3F show hydrogen bonding? Because in a paper, the slightly higher boilin point of CH3F was said to be caused by it's permanent dipole. Why doesn't hydrogen bonding apply here?

 

[fatima 007]

S02 is 117 degrees. 2 bonds and 1 lone pair

 

[fatima 007]

Because for hydrogen bonding hydrogen should be bonded to an electronegative element like N,O or F!

 

[Hassi123]

Hello everybody! Okay so I have a question: Does CH3F show hydrogen bonding? Because in a paper, the slightly higher boilin point of CH3F was said to be caused by it's permanent dipole. Why doesn't hydrogen bonding apply here?

ist permanent diple, the electronegativity difference caused by fluorine, it doesnt have h bonding

 

[RGBM211]

2 lone pairs

no its one lone pair and it forms 2 double bonds with oxygen

 

[angelgirl:)]

2 lone pairs

ok S IS IN GRP VII...so it has 6 outer most e- ...if 2 of them r shared with O ..as each O needs 2 e- to complete its octate..so 2 e- r left...which is 1 line pair...isnt it/

 

[lavanyamane]

ist permanent diple, the electronegativity difference caused by fluorine, it doesnt have h bonding

But why not? Hydrogen bonding requires H and either N,O or F with a lone pair. So it should e applicable?

 

[RGBM211]

ok S IS IN GRP VII...so it has 6 outer most e- ...if 2 of them r shared with O ..as each O needs 2 e- to complete its octate..so 2 e- r left...which is 1 line pair...isnt it/

yes its 1 lone pair stop getting confused

 

[leosco1995]

Where can i find purification of copper?

http://www.chemguide.co.uk/inorganic/extraction/copper.html
Scroll down to the purification part. Also, you can use google too.

 

[angelgirl:)]

yes its 1 lone pair stop getting confused

i noooo...

 

[leosco1995]

Hello everybody! Okay so I have a question: Does CH3F show hydrogen bonding? Because in a paper, the slightly higher boilin point of CH3F was said to be caused by it's permanent dipole. Why doesn't hydrogen bonding apply here?

Draw the structure of CH3F, and you will realize the the flourine atom isn't bonded to a hydrogen.

 

[Hassi123]

ok S IS IN GRP VII...so it has 6 outer most e- ...if 2 of them r shared with O ..as each O needs 2 e- to complete its octate..so 2 e- r left...which is 1 line pair...isnt it/

yeah, im so sorry, i was wrong, i had it in my notes all this time, i learnt that, just called my teacher got it corrected

 

[fatima 007]

Can you post the link please?

 

[RGBM211]

yeah, im so sorry, i was wrong, i had it in my notes all this time, i learnt that, just called my teacher got it corrected

its aryt bro