Theoretical Yield Example Problem - Chemistry Homework

Hypothetical Yield Example Problem - Chemistry Homework This model issue exhibits how to foresee the measure of item delivered from a given measure of reactants. Issue Given the reactionNa2S(aq) 2 AgNO3(aq) â†' Ag2S(s) 2 NaNO3(aq)How numerous grams of Ag2S will frame when 3.94 g of AgNO3 and an overabundance of Na2S are responded together? Arrangement The way to take care of this sort of issue is to discover the mole proportion between the item and the reactant.Step 1 - Find the nuclear load of AgNO3 and Ag2S.From the intermittent table:Atomic weight of Ag 107.87 gAtomic weight of N 14 gAtomic weight of O 16 gAtomic weight of S 32.01 gAtomic weight of AgNO3 (107.87 g) (14.01 g) 3(16.00 g)Atomic weight of AgNO3 107.87 g 14.01 g 48.00 gAtomic weight of AgNO3 169.88 gAtomic weight of Ag2S 2(107.87 g) 32.01 gAtomic weight of Ag2S 215.74 g 32.01 gAtomic weight of Ag2S 247.75 gStep 2 - Find mole proportion among item and reactantThe response equation gives the entire number of moles expected to finish and equalization the response. For this response, two moles of AgNO3 is expected to deliver one mole of Ag2S.The mole proportion at that point is 1 mol Ag2S/2 mol AgNO3Step 3 Find measure of item produced.The overabundance of Na2S implies the entirety of the 3.94 g of AgNO3 will be utilized to finish the reaction.grams Ag2S 3.94 g AgNO3 x 1 mol AgNO3/169.88 g AgNO3 x 1 mol Ag2S/2 mol AgNO3 x 247.75 g Ag2S/1 mol Ag2SNote the units counterbalance, leaving just grams Ag2Sgrams Ag2S 2.87 g Ag2S Answer 2.87 g of Ag2S will be created from 3.94 g of AgNO3.