Open Question
Identify the following as alkanes, alkenes, cycloalkenes, or alkynes:
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13. Alkenes, Alkynes, and Aromatic Compounds
Intro to Hydrocarbons
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Write the molecular formula for an alkane with 5 C atoms.
A
C5H12
B
C5H10
C
C5H14
D
C5H8
Verified step by step guidance1
Understand that alkanes are hydrocarbons with only single bonds between carbon atoms. The general formula for alkanes is C_nH_{2n+2}, where n is the number of carbon atoms.
Identify the number of carbon atoms in the alkane. In this problem, the alkane has 5 carbon atoms, so n = 5.
Apply the general formula for alkanes: C_nH_{2n+2}. Substitute n = 5 into the formula to find the number of hydrogen atoms.
Calculate the number of hydrogen atoms using the formula: H = 2n + 2. For n = 5, calculate H = 2(5) + 2.
Combine the number of carbon and hydrogen atoms to write the molecular formula for the alkane: C_5H_{12}.
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