Chemistry: Post your doubts here!

[Pravin Hapugaswatta]

O

ok this is silly but what equation did you write for silicon chloride reaction with water?[/QUOTE)
Sicl4 and h20 givinf si02 and hcl

 

[amina1300]

I had a nasty handwriting and there were cuttings everywhere on my paper am I at a disadvantage and will my marks be deducted??

 

[Zaki ali asghar]

i

ok but SiO2 does not dissolve in water and the said its soluble so shouldnt have been SiCl4+ 4h2o= SiOH4 and h20?

i wrote si(oh)4 both are correct because actually hcl was soluble

 

[haithsoul]

I had a nasty handwriting and there were cuttings everywhere on my paper am I at a disadvantage and will my marks be deducted??

lmao cutting? how?

 

[fatiiii]

What would the threshold be for A*

 

[haithsoul]

i

i wrote si(oh)4 both are correct because actually hcl was soluble

alright nice and how did you calculate the PH man? its killing me

 

[haithsoul]

What would the threshold be for A*

i think 190+ but you never know

 

[Pravin Hapugaswatta]

What i dont remember this . Did they say the product was soluble in water??

They said all the sicl4 dissolved in water

 

[sterryfox]

alright nice and how did you calculate the PH man? its killing me

So Si02 is wrong ;-;

 

[fatiiii]

know

It’s the that too high

 

[Pravin Hapugaswatta]

It

So Si02 is wrong ;-;

Is correct

 

[amina1300]

lmao cutting? how?

lol not literally cuts I just cut down what I wrote with a pen like in the rate experiment question cut almost half of what i wrote and then in the last question everywhere

 

[Zaki ali asghar]

alright nice and how did you calculate the PH man? its killing me

one was in excess i don't remember which using the limited reagant i think i found the moles for hcl, then found the moles of H+ which were in 800cm^3 but we needed for 1 dm. so moles*1000/800 and then the -log10(h+) formula, honestly i cant recall

 

[haithsoul]

one was in excess i don't remember which using the limited reagant i think i found the moles for hcl, then found the moles of H+ which were in 800cm^3 but we needed for 1 dm. so moles*1000/800 and then the -log10(h+) formula, honestly i cant recall

ah i see i messed it up then i though hcl would evolve but its soluble. shiiiiiit

 

[haithsoul]

guys the first part of the rate question said that what quality of the reaction is used to monitor the rate what did you write?

 

[amina1300]

what reactions were the mechanisms the fast and slow one

 

[sterryfox]

ah i see i messed it up then i though hcl would evolve but its soluble. shiiiiiit

what ph did you get was 0. something ?

 

[haithsoul]

what reactions were the mechanisms the fast and slow one

Icl+h2=hcl+hi then hi+Icl= hcl+I2

 

[haithsoul]

what ph did you get was 0. something ?

it was embarrassingly high lol

 

[sterryfox]

did anyone get a really big answer for k in the rate equation
i m pretty sure i calculated it correctly