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Find Excess Reactant & Limiting Reactant Theoretical, Actual, And Percent Yield Theoretical: 

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Find Excess Reactant & Limiting Reactant Theoretical, Actual, And Percent Yield Theoretical: 

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Copper - 0.787 (Excess)
Silver Nitrate - 0.540 (Limiting)
Theoretical: 0.540 moles x 125.551g/mol = 67.797g 2Cu(NO3)
Actual: .540 2/2 .787 —> .787 - .540 =.247 x 227.741 = 56.252g

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Since we already got moles we can go ahead and get the theoretical yield, percent yield excess reactant  limiting reactant, and actual yield.

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Copper - 0.787 Multiplied By 2 Then Divided By 2 = 0.787 moles
Silver Nitrate - 0.540 Multiplied By 2 Then Divided By 2 = 0.540 moles

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Step 1 - “Get Moles”:
Copper - 100g Divided By 127.092g/mol = 0.787 moles
Silver Nitrate- 150g Divided By 277.741 =
0.540 moles

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2Cu + 2Ag(NO3) —> 2Ag + 2Cu(NO3)
Molar Mass Of 2Cu (Copper): 127.092g/mol
Molar Mass of 2Ag(NO3) (Silver Nitrate):
277.741g/mol
Molar Mass Of 2Ag (Silver): 215.736g/mol
Molar Mass of 2Cu(NO3): 125.551g/mol
Number of Grams For Copper: 100g
Number Grams For Silver Nitrate: 150g

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1. Convert the units of the given substance (A) to moles.
2. Use the mole ratio to calculate the moles of wanted substance (B).
3. Convert moles of the wanted substance to the desired units.

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The actual yield can be given as the weight in grams or in moles.

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The limiting reactant in a chemical reaction is the substance that is totally consumed when the chemical reaction is complete. The amount of product formed is limited by this reagent, since the reaction cannot continue without it.

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The excess reactant is the reactant in a chemical reaction with a greater amount than necessary to react with the limiting reactant. It is the reactant that remain after a chemical reaction has reached equilibrium.

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The calculated or expected amount of product is called the theoretical yield. The amount of product actually produced is called the actual yield. When you divide actual yield by theoretical yield you get a decimal percentage known as the percent yield of a reaction.

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The calculated or expected amount of product is called the theoretical yield.The limiting reactant gives the smallest yield of the product calculated from the reactant available. The smallest yield of a product is called the theoretical yield.

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1. Theoretical yield
2. Percent yield
3. Excess reactant
4. Limiting reactant
5. Actual yield

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Stoichiometry is the calculation of reactants and products in chemical reactions.