If you were asked to convert 3.5 moles of aluminum to grams, which of the following should you use for the conversion? . Select one:. a. fraction: 6.022 times 10 superscript 23 atoms Al over one mol Al atoms. b. fraction: 26.981 g Al over one mol Al. c. fraction: 13.0 g Al over one mol Al. d. fraction: 6.022 times 10 superscript 23 atoms Al over 26.981 mol Al atoms.
To convert the given number of moles of aluminum to grams, we need to use the molar mass of the element as the conversion factor. Aluminum has a molar mass of 26.981 g/ mol. The answer to this problem is b. fraction: 26.981 g Al over one mol Al.