Question

Quanto pesa 1,5.10 24 átomos de cálcio ? ( Ca = 40 g/ mol)

Answer 1

1 mol ---- 6.02 × 10^23 átomos

1 mol Ca ---- 40 g ---- 6.02 × 10^23 átom.

X g ---- 1.5 × 10^24 atom.

X = 99. 7 g

(se as contas estiverem corretas, rs)