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Chemistry OCR F322 Question Help!

Can someone help me with this question please:

Dodecane, C12H26, can be cracked into ethene and a straight chain alkane such that the molar ratio ethene: straight chane alkane is 2 : 1.

i) Write a balanced equation for this reaction?

C12H26 ------> C2H4 + ?

ii) Name the straight chain alkane formed?

iii) Write a balanced equation to show the reforming of heptane into methylcyclohexane?

Much appreciated.
Original post by TheFootyKing19
Can someone help me with this question please:

Dodecane, C12H26, can be cracked into ethene and a straight chain alkane such that the molar ratio ethene: straight chane alkane is 2 : 1.

i) Write a balanced equation for this reaction?

C12H26 ------> C2H4 + ?

ii) Name the straight chain alkane formed?

iii) Write a balanced equation to show the reforming of heptane into methylcyclohexane?

Much appreciated.


Well, for every mole of C12H26 cracked, you have 2 moles of C2H4 and 1 mole of an alkane cracked.

Write out the balanced equation, then fill in the blank (so to speak):

C12H26 --> 2 C2H4 + X
(edited 12 years ago)
Original post by thegodofgod
Well, for every mole of C12H26 cracked, you have 2 moles of C2H4 and 1 mole of an alkane cracked.

Write out the balanced equation, then fill in the blank (so to speak):

C12H26 --> 2 C2H4 + X


x = C8H18? :wink:
Original post by TheFootyKing19
x = C8H18? :wink:


:yep:

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