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Chemistry 10 Online
OpenStudy (anonymous):

In a reaction between Zinc and Hydrochloric acid, what is the limiting reactant

OpenStudy (aaronq):

you need to know the balanced reaction and the amount of moles of each reactant.

OpenStudy (anonymous):

Sorry, meant to give that The balanced equation: Zn (s) + 2 HCl (aq) --> ZnCl2 (aq) + H2 (g) .003 moles of zinc and .06 moles of HCl

OpenStudy (aaronq):

Compare the 'normalized' (in a statistical sense) moles of each reactant. To do this, you divide the moles by the stoichiometric coefficient. \(\sf \dfrac{moles~of~Zn}{Zn's~coefficient}=\) \(\sf \dfrac{moles~of~HCl}{HCl's~coefficient}=\) which ever has less is the limiting reactant.

OpenStudy (anonymous):

ok thanks

OpenStudy (aaronq):

no probs

OpenStudy (jfraser):

it entirely depends on how much of each reactant you have, as @aaronq says

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