Question

Ka Cr Oy MI-A 3x1 C4 - NO STOR : The Empirical Formula of an Oxide analysis it was found to 2. A sample of ampound containing Co, and silver (Ag) weighed 1.372 g. On analysis it was 28 Oand 0974 g Ag. The molar mass of the compound is 303.8 g mol and the masses of c and Ag are 12.01 g mol-16.00 g mol), and 107.9 g mol, respectively. Dete the empirical and molecular formulas of the compound 3. Briefly explain how your Mg to Oratio would have been affected if you had failed to convert all of the Mg, N, present to magnesium oxide in Steps 18-22 of the procedure.

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Answer 1

Saturday 2 November 2019 3:08 PM Givens : Sample weight : 1.372 am molaz mass 303.8 ml Element Radio mass of demerd 0.288 g number of moly 0.018 0.018 - 2 0.009 0.9749 0.009 0.0011 0.009 0.11 1 0009 0.081 21 0.009 empiži ad formula : ( Ag , O2 molar mass=305.8901 * i molecular Forumula molar mass Empic formula 3038 151 multiply empiɛical formula with 2 . molecular Formula C Ag, 04 mass of carbons Total mass of sample- 1.392 - (0-238 +0.974 Number of moles: wt of element in g. molar mass o = 0 , 0.018 0.974 - 1077 0.009 hile taking satio device number of moles by smalles pembes (from number of mole)