Question

A densidade da platina e 21,45 G/OM³. Determine a massa,em gramas de peca cubica de platina de 2,0 CM de aresta ...

Answer 1

V = 2,0 x 2,0 x 2,0 = 8 cm³

D = m / V

21,45 = m / 8

m = 21,45 . 8

m = 171,6 g