In this lab, you will be producing an alum called potassium aluminum sulfate dod

Question

In this lab, you will be producing an alum called potassium aluminum sulfate dodecahydrate. What does the word "dodecahydrate" indicate? There are 12 water molecules incorporated into the alum. The alum forms the shape of a dodecahedron. There are 12 hydrogen atoms incorporated into the alum. Suppose you measured a starting mass of 1.14/ g of aluminum. How, many moles of aluminum would this be? This mass was measured with great sc include at least as many sig figs in order to avo rounding error. Report your final answer (value only no units) the apprcpnate number of sig figs. Your Answer:

Explanation / Answer

potassium alum formula

K2SO4 Al2(SO4)3.12H2O

dodeca means 12 water molecules

deca means 10 and do means 2

no of moles of aluminium = mass of aluminium/gram atomic mass

                                     = 1.147/27 = 0.04248moles

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