If we combined 6 mol KOH and 6 mol H2SO4, and they reacted via the balanced equation below, how many moles of K2SO4 should be made?
2 KOH + H2SO4 = 2 H2O + K2SO4
3 answers
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If there are no instructions about which reacts completely, this means you have a limiting regent (LR) problem. You know that is the case when an amount is given for more than one of the reactants. So you look at the equation and you know 6 mols H2SO4 will produce 6 moles K2SO4 because 1 mol H2SO4 produces 1 mol K2SO4. Likewise, 6 mols KOH will produce just 3 mols K2SO4 so KOH is the LR. So you get 3 mols K2SO4 and you will have some H2SO4 left over unreacted.
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1 answer