human
What is the percentage of aluminium (Al) in Al2(CrO4)3?
gpt
Al2(CrO4)3 is comprised of 13.42% Al.
Explanation: The request for percentage requires you to calculate mass of element 'Al' over the molar mass of Al2(CrO4)3; after using a molar mass calculator or a periodic table, Al2(CrO4)3 is 13.42% aluminium.