02 - multi step mole problems chemistry PDF

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Multi-step mole problems worksheet from chemistry....

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MULTISTEP MOLE PROBLEMS Let’s begin by looking at a series of simple mole problems: a)Cal c ul at et hemol armas sofc ar bondi o xi de( CO2) ?

b)Cal c ul at et henumberofmol esi n110gofc ar bondi o xi de.

c )Howmanymo l ec ul e sar et her ei n110gofc ar bondi o xi de ?

A multi-step problem puts all of these different steps into one problem: Agr ai nofs andhasamas sof0. 012g. I ft hes andi sc ompos edofs i l i c ondi o xi de, ho w manymol ec ul esofSi O2ar et her ei nt hegr ai nofs and?

Now let’s repeat this same question putting all of the steps together: Agr ai nofs andhasamas sof0. 012g. I ft hes andi sc ompos edofs i l i c o ndi oxi de, ho w manymol ec ul esofSi O2ar et her ei nt hegr ai nofs and?

Let’s try another:

Cal c ul at et hemas sof4. 12x1024 at omsofBor on.

De t er mi net henumberofat omsi n5. 8gofoxygen( notdi at omi c ) .

Adding another conversion factor: atoms/molecules: Cal c ul at et henumberofO at omsi n1. 00gofwat er .

Cal c ul at et henumberofO at omsi n3. 2gofCar bondi o xi de....