ANSWERS: 1
  • Assuming this is mass percentage you divide each percentage by the atomic mass to convert to molar percentage and divide by common denominator to get whole number. 39.2 g% / 16 g/mol = 2.45 mol% O 28.9 g% / 35.05 g/mol = 0.85 mol% Cl 31.9 g% / 39.09 g/mol = 0.81 mol% K 2.45/0.85 = 3 O 0.85/0.85 = 1 Cl 0.81/0.85 = approx 1 K So KClO3

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