Chemistry Forum

4 gramos dividido por 32.00gramos/mol = 0.125mol oxigeno existe como un moleculo diatomico ...O2

A voltaic cell made with Cu l CuSO4 ll Fe l Fe(NO3)3 yielded a -0.420V when connected with black to Fe and red to Cu. The Cu has the lower Standard Reduction Potential(0.34V) so it should be oxidized( anode = black lead to meter) and the Fe(0.77V) should be reduced(cathode = red lead to meter) but t...