The number of moles present in #"44 g"# of #"CO"_2# ?

1 Answer

#"0.9998 mols" -> "1.0 mols"# (2 sig figs)

Explanation:

#CO_2# has a molar mass of #44.009 \ "g/mol"#. That means that one mole of #CO_2# has a mass of #44.009 \ "g"#.

So, in #44 \ "g"# of #CO_2#, there is a little under one mole of #"CO"_2#.