How do I calculate the percent yeild of copper give the mass and concentration of Cu(NO3)2 and the final mass of copper
To calculate the percent yield of copper, you need to know the theoretical yield, which is the maximum amount of copper that can be obtained based on the given reactants. Then you compare it to the actual yield, which is the amount of copper obtained in the experiment. The percent yield is calculated using the following formula:
Percent Yield = (Actual Yield / Theoretical Yield) × 100
To find the theoretical yield, you need to consider the balanced equation for the reaction involving the copper compound (Cu(NO3)2). Let's assume the reaction is:
2Cu(NO3)2 + 4H2O -> 2Cu(OH)2 + 4HNO3
From the equation, you can see that two moles of Cu(NO3)2 react to form two moles of Cu(OH)2. Therefore, the stoichiometric ratio of Cu(NO3)2 to Cu(OH)2 is 2:2, or 1:1.
First, calculate the moles of Cu(NO3)2:
Moles = Mass / Molar Mass
Next, use the stoichiometry to determine the moles of Cu(OH)2 that should be formed, assuming complete reaction.
Since the stoichiometric ratio of Cu(NO3)2 to Cu(OH)2 is 1:1, the moles of Cu(OH)2 should be the same as the moles of Cu(NO3)2.
Finally, calculate the theoretical yield of copper by multiplying the moles of Cu(OH)2 by the molar mass of copper (Cu).
Theoretical Yield = Moles of Cu(OH)2 * Molar Mass of Cu
Now, to find the percent yield, divide the actual mass of copper obtained by the theoretical yield, and multiply by 100.
Percent Yield = (Actual Mass / Theoretical Yield) × 100
Please provide the mass and concentration of Cu(NO3)2, as well as the final mass of copper, so I can assist you with the specific calculations.