felipe0387 23/05/2017 Massa do cobre=63,5 g63,5g6.10*23x g3.10*23x . 6.10*23 = 63,5 . 3.10*23x=190,5.10*23/6.10*23x= 190,5/6x=31,75 gramas de cobre
felipe0387
Massa do cobre=63,5 g
63,5g6.10*23
x g3.10*23
x . 6.10*23 = 63,5 . 3.10*23
x=190,5.10*23/6.10*23
x= 190,5/6
x=31,75 gramas de cobre