Description Hi I have HW, its chemistry class lab, just watch the videos and answers the questions. the videos down bellow and the questions as well QUESTION 1 Complete the following table Mass of beaker g Mass of beaker and CuSO4·5H2O g Mass of CuSO4·5H2O g Mass of Al foil g Mass of beaker and copper (first heating) g Mass of beaker and copper (second heating) g Mass of beaker and copper (third heating, if needed) g Mass of copper metal g QUESTION 2 Write the balanced reaction of aluminum with copper(II) sulfate in aqueous solution. QUESTION 3 Complete the following table Moles of copper product based on moles of Al mol Moles of copper product based on CuSO4·5H2O mol Limiting reactant Reactant in excess Amount of excess reactant that was unreacted g Theoretical yield of copper g Percent yield of copper % QUESTION 4 Based on your experimental procedures, give some reasons for obtaining a percent yield of less than 100%. QUESTION 5 Heating the copper product at too high a temperature in an oxygen atmosphere results in the formation of black copper(II) oxide, CuO. Write a balanced equation for this reaction.
Recent Comments