Chemistry 3A

a student weighed out 1.106g of KHP. How many moles was that?

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1. This one requires the conversion of a mass of a chemical to moles of a chemical. This can be done using the molecular weight of KHP:

MW of KHP = 204.22 g/mol

You need to make a correct conversion factor, since you have your mass in grams:

1.106g KHP * 1 mol/204.22g KHP

= 0.005416 mol KHP or 5.416*10^(-3) mol KHP

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