The addition of excess HBr to an alkyne of formula C5H8 yields the products 2,2-dibromopentane and 3,3-dibromopentane as shown in the image attached.
The reaction of HBr with C5H8 is an addition reaction. There are two isomeric alkynes that both have the molecular formula C5H8. These isomeric alkynes are; 1-pentyne and 2-pentyne.
The addition of excess HBr to these two isomeric alkynes yields the products 2,2-dibromopentane and 3,3-dibromopentane. Both of these isomeric alkynes have the formula C5H10Br2.
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Answer:
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Explanation:
The invariant mass of an electron is approximately9. 109×10−31 kilograms, or5. 489×10−4 atomic mass units. On the basis of Einstein's principle of mass–energy equivalence, this mass corresponds to a rest energy of 0.511 MeV.
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