What is the IUPAC name of the alkane with the formula C5H12?

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Question: What is the IUPAC name of the alkane with the formula C5H12?

Options:

Correct Answer: Pentane

Solution:

The alkane with the formula C5H12 is named Pentane.

What is the IUPAC name of the alkane with the formula C5H12?

What is the IUPAC name of the alkane with the formula C5H12?

Step 1: Identify the formula given, which is C5H12.
Step 2: Count the number of carbon (C) atoms in the formula. There are 5 carbon atoms.
Step 3: Recall that alkanes are hydrocarbons with the general formula CnH(2n+2).
Step 4: For n = 5 (since there are 5 carbon atoms), calculate the number of hydrogen atoms: 2(5) + 2 = 12. This matches the given formula C5H12.
Step 5: Use the naming convention for alkanes, where the prefix for 5 carbon atoms is 'pent'.
Step 6: Combine the prefix with the suffix '-ane' to indicate it is an alkane.
Step 7: Therefore, the IUPAC name for C5H12 is Pentane.

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