Edexcel chemistry resit unit 1

How'd everyone find it I thought it wasn't to bad and quite easy not sure I got the first mass spec question right though I put (0^16)^+ and (o^16,o^16)^+

Also got something like +61 for Hess lay question
And -30000 and something over (1/72) for the combustion question

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How'd everyone find it I thought it wasn't to bad and quite easy not sure I got the first mass spec question right though I put (0^16)^+ and (o^16,o^16)^+


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Yeah very straight forward exam I thought, I put the same for that question.

Grade boundaries are gonna be super high I reckon from looking at the January ial 2016 an a was 68


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Yea that spectro answers are correct. But it was +71 not +61 for hess cycle

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I got (¹⁶O-¹⁶O)⁺ and (¹⁶O)⁺ for the first mass spec question.

For the "deflection of lines" question I made (¹⁶O)⁺ more bent as it has a smaller mass.

I got + 71 kJ mol^-1 for the first Hess cycle.

For the -2046.(something) kJ mol^-1 for the pentane combustion question. (and for the bit after I said that the experimental value was different because incomplete combustion may have happened)

For the graph, I made everything decrease apart from Sulfur which had a lower 1st IE than Phosphorus.

Last question was: but-1-ene (skeletal) + h2 --> /\/ and conditions was nickle catalyst.

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Why was carrying out the pentane combustion dangerous for a school lab? is it because it was highly exothermic?

What did you guys write for what sigma bond and pi bonds in addition reactions.

What was the colour change for ethene + potassium manganate?

I got (¹⁶O-¹⁶O)⁺ and (¹⁶O)⁺ for the first mass spec question.

For the "deflection of lines" question I made (¹⁶O)⁺ more bent as it has a smaller mass.

I got + 71 kJ mol^-1 for the first Hess cycle.

For the -2046.(something) kJ mol^-1 for the pentane combustion question. (and for the bit after I said that the experimental value was different because incomplete combustion may have happened)

For the graph, I made everything decrease apart from Sulfur which had a lower 1st IE than Phosphorus.

Last question was: but-1-ene (skeletal) + h2 --> /\/ and conditions was nickle catalyst.

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Why was carrying out the pentane combustion dangerous for a school lab? is it because it was highly exothermic?

What did you guys write for what sigma bond and pi bonds in addition reactions.

What was the colour change for ethene + potassium manganate?

incomplete combustion isn't correct. it could be because some pentane evaporates when heated. dangerous for a school lab because its highly flammable and the colour change is pink to colourless

incomplete combustion isn't correct. it could be because some pentane evaporates when heated. dangerous for a school lab because its highly flammable and the colour change is pink to colourless

Purple to colourless for kmno4

I put may be incomplete and cause co to be realised
I wrote about who pi bond is very electron dense and it doesn't have much overlap so that's why pi bond is broken didn't really know what to put for sigma bind so just wrote how it has a string overlap so is very stable and isn't affected
And purple to colourless
With a 1,2 diethanol formed
And another test was bromine water which turned orange/brown to colourless


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I put may be incomplete and cause co to be realisedI wrote about who pi bond is very electron dense and it doesn't have much overlap so that's why pi bond is broken didn't really know what to put for sigma bind so just wrote how it has a string overlap so is very stable and isn't affectedAnd purple to colourlessWith a 1,2 diethanol formedAnd another test was bromine water which turned orange/brown to colourlessPosted from TSR Mobile

curious as to why it's incorrect. I always get these types of questions wrong

thank the lord was the product CH2OHCH2OH?

yayy same answers. apparently we're wrong about the 1st one tho

Surely incomplete is right you wouldn't want co in a school lab


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