9. Look up the preparation of an oxalate complex of Ni, Mn, or Co. Cite
your reference and state whether this preparation would be suitable to
add to this experiment. Why or why not?
10. Find an analytical method to determine the amount of Fe, Cu, Cr, or Al
in your oxalate complex. Cite the reference to the method. Could you
do the determination with the chemicals and equipment available in
your laboratory? Why or why not?
11. Oxalic acid is used to remove rust and corrosion from automobile radi-
ators. How do you think it works?