(a)
Interpretation:
The structure of given HFAs needs to be determined.
1, 1, 1, 2, 3, 3, 3-heptafluoropropane.
Concept introduction:
The organic compounds generally contain carbon atoms. The naming of organic compounds is done by considering three main terms which are prefix, suffix and the root name. The longest chain in the compound is first identified and named that will be the root name for the compound. For example, if there are 3 carbon atoms in the longest chain, the root name will be “prop”. To determine the suffix,
Explanation of Solution
The given name of hydrofluoroalkane is 1, 1, 1, 2, 3, 3, 3-heptafluoropropane. According to the name there are 3 carbon atoms in the main chain and there are 7 fluorine groups attached to it at different positions.
There are 3 fluorine groups at 1st position, 1 at 2nd position and 3 at 3rd position. Thus, the structure of compound is as follows:
(b)
Interpretation:
The structure of given HFAs needs to be determined.
1, 1, 1, 2-tetrafluoroethane
Concept introduction:
The organic compounds generally contain carbon atoms. The naming of organic compounds is done by considering three main terms which are prefix, suffix and the root name. The longest chain in the compound is first identified and named that will be the root name for the compound. For example, if there are 3 carbon atoms in the longest chain, the root name will be “prop”. To determine the suffix, functional group should be identified. For example, alcohol group will have suffix −ol, aldehyde will have suffix −al. If there is no functional group the suffix will be −ane. In the last step, side groups are identified and named. Prefix is used to give number of side groups and substituent’s present on the main carbon chain.
Explanation of Solution
The given name is 1, 1, 1, 2-tetrafluoroethane. According to the name, there are 2 carbon atoms in the chain. Also, there are fluorine groups at different positions.
There are 3 fluorine groups at 1st position and 1 fluorine group at 2nd position. The structure of the compound will be:
Chapter 22 Solutions
Chemistry: Matter and Change
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