Methane2. Octene3. Propyne4. Pentene5. Nonane6. Decyne7. Ethene8. Heptane9. Hexyne10. Butene11. C6H1412. C2H213. C3H814. C7H1415. C4H616. C8H1817. C9H1818. C5H1219. C10H2020. C2H621. Give the formula for the alkane containing 500 carbons. ___________________22. Give the formula for the alkane containing 100 hydrogens. ___________________23. Give the formula for the alkene containing 15 carbons. ___________________24. Give the formula for the alkyne containing 40 hydrogens. ___________________
Question
Methane2. Octene3. Propyne4. Pentene5. Nonane6. Decyne7. Ethene8. Heptane9. Hexyne10. Butene11. C6H1412. C2H213. C3H814. C7H1415. C4H616. C8H1817. C9H1818. C5H1219. C10H2020. C2H621. Give the formula for the alkane containing 500 carbons. ___________________22. Give the formula for the alkane containing 100 hydrogens. ___________________23. Give the formula for the alkene containing 15 carbons. ___________________24. Give the formula for the alkyne containing 40 hydrogens. ___________________
Solution
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The formula for the alkane containing 500 carbons is C500H1002. Alkanes follow the general formula CnH2n+2, so an alkane with 500 carbons would have (2*500)+2 = 1002 hydrogens.
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The formula for the alkane containing 100 hydrogens is C49H100. Using the general formula for alkanes (CnH2n+2), if we have 100 hydrogens, we would have (100-2)/2 = 49 carbons.
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The formula for the alkene containing 15 carbons is C15H30. Alkenes follow the general formula CnH2n, so an alkene with 15 carbons would have 2*15 = 30 hydrogens.
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The formula for the alkyne containing 40 hydrogens is C21H40. Alkynes follow the general formula CnH2n-2, so if we have 40 hydrogens, we would have (40+2)/2 = 21 carbons.
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