Answer to Question #114710 in General Chemistry for Savannah Walker

Question

Which combination of metals will produce the greater voltage, Ca and Al or Ca and Cu?

Answer 1

Сombination of Ca and Cu produce the greater voltage less than less than combination. The difference in electrode potential of Ca (E_Ca/Ca2+ = - 2,868 V) and Cu (E_Cu/Cu+ = + 0,522 V) larger than the pair Ca (E_Ca/Ca2+ = - 2,868 V) and Al (E_Al/Al3+ = - 1,700 V).