How to find no. of bonds in an alkene.
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Aleksander Krol
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there' a question from jan 2021 edexcel unit 1 asking us to calculate the no. of C=C bonds in 1 molecule of squalene (alkene) .
my question is, in orded to work this out, do we like always have to divide the moles of hydrogen needed to convert the alkene into an alkane by the no. of moles of alkene?
basically, how do i find the no. of C=C in an alkene? is there a formula for it?
my question is, in orded to work this out, do we like always have to divide the moles of hydrogen needed to convert the alkene into an alkane by the no. of moles of alkene?
basically, how do i find the no. of C=C in an alkene? is there a formula for it?

Last edited by Aleksander Krol; 7 months ago
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charco
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(Original post by Aleksander Krol)
there' a question from jan 2021 edexcel unit 1 asking us to calculate the no. of C=C bonds in 1 molecule of squalene (alkene) .
my question is, in orded to work this out, do we like always have to divide the moles of hydrogen needed to convert the alkene into an alkane by the no. of moles of alkene?
basically, how do i find the no. of C=C in an alkene? is there a formula for it?
there' a question from jan 2021 edexcel unit 1 asking us to calculate the no. of C=C bonds in 1 molecule of squalene (alkene) .
my question is, in orded to work this out, do we like always have to divide the moles of hydrogen needed to convert the alkene into an alkane by the no. of moles of alkene?
basically, how do i find the no. of C=C in an alkene? is there a formula for it?

The general formula of an alkane (totally saturated) is CnH(2n+2)
You can use this to find the number of hydrogen atoms in a saturated molecule. The number "missing", divided by 2 gives you the number of double bonds (for polyalkenes)
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