general "quantities in chemical reactions" questions

[voodoomagic]

hi,

im in high school, and we are currently doing a unit of chemistry on quantities in chemical reactions, and there are a few things i dont get, and i was wondering if anyone could show me a formula or an example, on calculating the theoretical yield, how to get the mass of the limiting reagent, and stoichiometry.. and how do u get the molecular formula?

thanks alot for any info :)

[chem_tr]

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[Sirus]

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