A researcher found that 11.56 grams of lead sulfide pbs, Ask an Expert

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A researcher found that 11.56 grams of lead sulfide, PbS, were formed when 10.0 grams of lead reacted with 1.56 grams of sulfur, when 10.0 grams of lead reacted with 3.00 grams of sulfur, and when 18.0 grams of lead reacted with 1.56 grams of sulfur. Explain these observations in terms of the concept of limiting reactant.

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