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Composto

Composto. Analisi qualitativa. Analisi quantitativa. Composizione percentuale. Formula minima. Modello. Formula minima (o empirica). Formula molecolare (o bruta). Formula di struttura. Formula sterica. Massa molare. C 2 H 6. CH 3. CH 3. Lewis. VSEPR, O.M. Fornace.

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Composto

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  1. Composto Analisi qualitativa Analisi quantitativa Composizione percentuale Formula minima

  2. Modello Formula minima (o empirica) Formula molecolare (o bruta) Formula di struttura Formula sterica Massa molare C2H6 CH3 CH3 Lewis VSEPR, O.M.

  3. Fornace Assorbitore di H2O Assorbitore di CO2 O2 azoto

  4. n = nCr = nK = no = 35,35 g 38,07 g 26,58 g m m m m = = = = = = 0,6798 mol 2,379 mol 0,6798 mol 39,1 g mol-1 16,0 g mol-1 52,0 g mol-1 MM MA MA MA Calcolo della formula minima Determinare la formula minima del composto costituito 26,58 % di K, 35,35 % di Cr e 38.07 % di O.

  5. K = Cr = O= 0,6798 0,6798 2,379 1 1 3,5 = = = 0,6798 0,6798 0,6798 K2Cr2O7 KCrO3,5

  6. % = %Al = 27x2 x 100 MA x c MAAlx2 = = 15,79 % x100 342 MM MM %s = 32 x 3 x 100 MASx3 = = 28,07 % 342 MM %o = 16 x12 x100 MAOx12 = = 56,14 % 342 MM Determinare la composizione percentuale del Al2(SO4)3.

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