Jawabanmu

2014-06-04T12:55:19+07:00
K = 26,53% = 26,53 gram.
Mol K = 26,53/39 = 0,68mol
Cr = 35,37% = 35,37 gram.
Mol Cr = 35,37/52= 0,68mol
O = 38,10% = 38,10 gr.
Mol O = 38,10/16=2,38mol
perbandingan mol= 1 : 1 : 2 Rumus empiris= KCrO2