Empirical Formula Empirical Formula Lab Class: Chemistry 1405 Fall 2013 Aim: The aim of this Lab Exercise is to use the mass of a chemical and use that mass to find the amount of moles of the final product you can get using the empirical formula. Introduction: The empirical formula of ...
moles; O = 30.4/16 = 1.9 moles 2. 1.27/1.27 = 1; 1.27/1.27 = 1; 1.9/1.27 = 1.5 3. Ratio: 1:1:1.5 4. Double each value 2:2:3 Empirical Formula is therefore: Na 2 S 2 O 3 (sodium thiosulphate) Answer the following questions on lined paper NEATLY and SHOW YOUR WORKING!!!
Equal but Opposite Charges Na +1 and Cl -1 : NaCl +1 + (-1) = 0 Mg +2 and O -2 : MgO +2 + (-2) = 0 Al +3 and P -3 : AlP+3 + (-3) = 0 FIRSTrule: write symbols, (+) FIRST! try a few formulas: Li +1 and I -1 Ca +2 and O -2 Al +3 and N -3 K...
Description of data: Worksheet 1 (E.Coli_GAII-TSS) – All TSSs identified from E. coli GAII datasets with the empirical method. Worksheet 2 (E.Coli_GAII-TSS) – All TTSs identified from E. coli GAII datasets with the empirical method. Worksheet 3 (Predicted vs. confirmed TSSs) – Di...