OK so the equation is balanced and is:
3Mg + 2AlCl(3) ---> 3MgCl(2) + 2Al
I am given:
mass of crucible and Mg: 34.61g
mass of crucible alone: 28.43g
mass of crucible and Al: 32.42g
I was told to subtract the crucible weight from the other 2 measurements so Mg = 6.18g and Al = 3.99g
IThe questions are:
1) What mass of Mg is used in the reaction?
2) What is the mass of Al produced?
3) What is the Theoretical Yield of AL?
4) What is the percent yield of the reaction?
1
Expert's answer
2012-06-22T08:38:43-0400
1) m(Mg) = m(crucible and Mg) - m(crucible alone) = 34.61 - 28.43 = 6.18 g 2) m(Al) = m(crucible and Al) - m(crucible alone) = 32.42 - 28.43 = 3.99 g 3) m(Al, theor.) = m(Mg)*2*M(Al) / 3*M(Mg) = 6.18*2*27 / (24*3) = 4.635 g 4) the percent yield is (3.99 / 4.635)*100% = 86.1%
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment