Chemistry P1 and P2 today

[Shadow]

I used the exact same knowledge and marked higher and higher.

 

[Saad Mughal]

Could someone pleaseee tell me what B9 in Paper 2 was related to? Just the jist of it. I've forgotten the entire question. :/

Reversible Reactions and partially Rate of Reactions.

 

[altox876]

What do u think about movement of electrons, one direction or two?

One direction.

 

[passion hunter]

i think higher n higher was correct suppose 100g of both fertilizers were used, so the mass of nitrogen was the % v calculated ... dividing it by 28 (Mr of nitrogen gas) , v get the moles of nitrogen which i suppose came to b equal in both the fertilizers

you are saying moles came to be equal and then you ticked higher and higher.....if they were equal how could they be higher???

 

[Shadow]

you are saying moles came to be equal and then you ticked higher and higher.....if they were equal how could they be higher???

No, i ticked higher n same ... now i think that i did it wrong coz higher n higher seems to be more appropriate

 

[ReN0uNeD De\/!|_]

I used the exact same knowledge and marked higher and higher.

guyz i dont really thnk that it wud be higher and higher coz the moles of nitrogen were equal i.e 2 i thnk in both of the fertilizers so how cud it be higher and HIGHER huh.????..... Higher and equal was correct...

 

[ReN0uNeD De\/!|_]

No, i ticked higher n same ... now i think that i did it wrong coz higher n higher seems to be more appropriate

why..???.. give any reasons...

 

[Haris Sal11]

Er. If you already didn't know already, I'll tell you something. You must have taken the example from HCl being a conductor in aqueous form but in liquid form neither HCl nor H2S conducts. Now that's that.
And you don't need to start being rude if your point of view is not agreed at. Don't just start commenting on people. Learn to control your temper please.

I've ******* lost so many marks. What do you expect? FOR THE ONE LAST ******* TIME, TELL ME! Why can't we find the mass of CaCO3 by the Mr method?

 

[Saad Mughal]

guyz i dont really thnk that it wud be higher and higher coz the moles of nitrogen were equal i.e 2 i thnk in both of the fertilizers so how cud it be higher and HIGHER huh.????..... Higher and equal was correct...

Nobody can tell for sure! The problem is that at that moment, I just used this formula (Moles = Mass/Mr) to pick higher and higher. I could be right, I could be wrong.

 

[UzairNavid]

What was the last question in P2 about?

 

[Saad Mughal]

I've ******* lost so many marks. What do you expect? FOR THE ONE LAST ******* TIME, TELL ME! Why can't we find the mass of CaCO3 by the Mr method?

Temper temper. Everyone loses marks, I've lost many as well, that doesn't mean I go crazy and start abusing.
I don't know what you're saying. Please tell me the method you used and the answers you got.

 

[Saad Mughal]

What was the last question in P2 about?

Bonding and Moles.

 

[farhan141]

Ok . I lost 1 mark

 

[Saad Mughal]

Ok . I lost 1 mark

In what?

 

[ReN0uNeD De\/!|_]

Nobody can tell for sure! The problem is that at that moment, I just used this formula (Moles = Mass/Mr) to pick higher and higher. I could be right, I could be wrong.

i dont remember the question correctly but can u tell me how did u get the mass???

 

[farhan141]

I replied to kamihus

 

[UzairNavid]

Bonding and Moles.

What about bonding? The thing is, i can't figure out whether I've forgotten the question, or I accidentally left the question and screwed my paper up.

 

[Shadow]

why..???.. give any reasons...

i think higher n higher was correct suppose 100g of both fertilizers were used, so the mass of nitrogen was the % v calculated ... dividing it by 28 (Mr of nitrogen gas) , v get the moles of nitrogen which i suppose came to b equal in both the fertilizers

that's the reasoning i have

 

[Saad Mughal]

i dont remember the question correctly but can u tell me how did u get the mass???

The 2 compounds were UREA and AMMONIUM NITRATE,
(NH2)2CO and NH3NO3, I calculated the Mr's and then used 28/Mr to find the % composition.

 

[ReN0uNeD De\/!|_]

What was the last question in P2 about?

I thnk it was bout the effects of certain factors like temp on the speed of reaction....