$3 D O 70% Thu Nov 17 4:49:25 PM 4) C, saplinglearning.com https://blackboard...

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$3 D O 70% Thu Nov 17 4:49:25 PM 4) C, saplinglearning.com https://blackboard.... https://blackboard.... https://blackboard.... https://blackboard. Gra 11/20/2016 11:55 PM 88.7/100 11/16/2016 01:45 PM Print Calculator Periodic Table ts uestion 17 of 28 Sapling Learning e mass spectrum of an organic compound shows the relative abundances of M to be 83.94% and M+1 to be 14,53%. Assuming the peaks are caused by tc and isotopes, determine the number of carbon atoms in the compound. Natural abundances 2cis 98,93% and 8cis 1.07% Number carbon atoms A Previous & Give Up & View solution Check Answer Next Exit Hint about us careers partners privacy policy l terms of use contact us help

Explanation / Answer

Ratio of 13C isotope to 12C = 13C / 12C = 1.07 / 98.93 = 0.0108157 *100 = 1.081572 %
1.081572 % of carbons are present
Then find how many carbons are present in (14.53 / 83.94)
Lets say you have x number of carbons in that 1.081572 %
x * 1.081572 = 14.53 / 83.94 will give you the number of carbon atoms
x = [14.53 / (83.94*1.081572) ] *100 = 16 carbon atoms are present in the compound.

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