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Chemistry Lesson: Formulas for Ionic Compounds

[View the accompanying Practice Problems on Formulas for Ionic Compounds here.] [Get more Practice Problems on Formulas for Ionic Compounds here.]



Chemistry Practice Problems: Determining Formula from Percent Composition

[Download the accompanying PDF worksheet.] 1. A bright orange, crystalline substance is analyzed and determined to have the following mass percentages: 17.5% Na, 39.7% Cr, and 42.8% O. Determine its empirical formula. 2. A sample of cisplatin is 65.02% platinum, … Read More



Chemistry Practice Problems: Formulas for Ionic Compounds

[View the accompanying Lesson on Formulas for Ionic Compounds¬†here.] There is a mistake on #2.¬† Selenate ion is SeO42-, so aluminum selenate should be Al2(SeO4)3. [Download the accompanying PDF worksheet here.] Write formulas for the following ionic compounds: barium sulfide … Read More