Question #df3c0

1 Answer

A mole is a collection that contains #"6.022 x 10"^23# atoms/ molecules /ions of a substance.

1 mole of #"BF"_3# has #"6.022 x 10"^23# molecules.

To calculate the number of moles in #"7.04 x 10"^22# molecules of #"BF"_3# we will use dimensional analysis.

The following diagram is an example of how to use dimensional analysis to convert molecules to moles.

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Following the example:

#"7.04 x 10"^22# molecules x ( #"1 mole/6.022 x 10"^23"# molecules) = #"0.117 mole"#