Chemistry p41: How'd it go peeps?

[Abdel Moniem]

mass of X in cyclohexance was 0.36 i guess

 

[Autumngirl]

mass of X in cyclohexance was 0.36 i guess

Your decimal places are skewed. I got 0.0036.

 

[Senorita.K]

Your decimal places are skewed. I got 0.0036.

Yup even i got 0.0036

 

[Abdel Moniem]

oh sorry yes 0.0036

 

[Abdel Moniem]

i cant remember my answer's well but what i remember was that 36 was out there

 

[Abdel Moniem]

When an alkaline solution was added and they asked for the two products i drew out the alkyl attatched to the ring and sodium added to C=O

 

[randomcod]

When an alkaline solution was added and they asked for the two products i drew out the alkyl attatched to the ring and sodium added to C=O

It was COO- and CHI3
I didn't put the Na+ (COO-Na+) because it said alkaline solution, not NaOH
I don't think you'd lose marks tho

 

[Abdel Moniem]

thanks god!, in the x-ray diffraction i said that phosphorus would produce the most intense spot because it contains the most electrons. i draw out a key lock model in the enzyme question explained how a substrate binded into the enzyme's active site. enzymes catalysis the reaction and the products diffuse out. In the non competitve part i described how the inhibitor bind to another binding site, alters the enzymes shape so that the substrate can no longer bind to the active site. There was another organic question that asked for drawing out isomers of C5H10, one isomer had one of the C atoms in the C=C bond bonded to two hydrogens and the other carbon had an ethyl and a methyl

 

[randomcod]

thanks god!, in the x-ray diffraction i said that phosphorus would produce the most intense spot because it contains the most electrons. i draw out a key lock model in the enzyme question explained how a substrate binded into the enzyme's active site. enzymes catalysis the reaction and the products diffuse out. In the non competitve part i described how the inhibitor bind to another binding site, alters the enzymes shape so that the substrate can no longer bind to the active site. There was another organic question that asked for drawing out isomers of C5H10, one isomer had one of the C atoms in the C=C bond bonded to two hydrogens and the other carbon had an ethyl and a methyl

Yes, yes, yes and yes (assuming by 'the other carbon' you mean the 2 cis-trans isomers which were exactly the same)

 

[Daniel Ali]

in the shale gas Q cud v make 2 isomers of C3Hy with H as 8 ,and one other structure of C3H6 ? or the isomer wont b counted as an other structure?

 

[Daniel Ali]

F2O
Like water, v-shaped

what did they mean by '3' atoms of fluorine and oxygen each?

 

[Daniel Ali]

It was COO- and CHI3
I didn't put the Na+ (COO-Na+) because it said alkaline solution, not NaOH
I don't think you'd lose marks tho

i just wrote CHI3 ,dint draw its structure ,will i even get a mark for it?

 

[randomcod]

i just wrote CHI3 ,dint draw its structure ,will i even get a mark for it?

I wrote it like that too. I believe it's correct

 

[Daniel Ali]

btw what do u guys think the gt for an A will be? somewhere between 60-70? or higher?

 

[Daniel Ali]

I wrote it like that too. I believe it's correct

ahan,a frnd of mine said they asked for the structures,it was a mark Q tho. there were soo many 1mark Qs...

 

[randomcod]

btw what do u guys think the gt for an A will be? somewhere between 60-70? or higher?

Should be a 67-68 mark gt. It was a standard paper. A lot of 1 mark questions you can easily drop, a lot of specific stuff. A standard paper IMO

 

[Senorita.K]

i don't remember the question properly though,anyways
in an organic question in one of the parts they asked which isomerism is it?

 

[Senorita.K]

what did you guys get the value for L ?

 

[randomcod]

what did you guys get the value for L ?

6.23x10^23

 

[FusionBolt1]

what did they mean by '3' atoms of fluorine and oxygen each?

I wrote FO2 .-.