Question

Hitunglah massa dari 1,204x10(pangkat22) molekul gas SO3 (Ar S=32 dan O= 16)

Answer 1

Mol SO3 = 1,204 x10²² / 6,02 x10²³ = 0,02 mol

massa SO3 = mol x Mr
Mr SO3 = 80
massa SO3 = 0,02 mol x 80 gr/mol = 1,6 gram

Answer 2

W = n × Ar
n = 1,204×10^22/6,02×10^23
n = 1,204×10^22×10^-23/6,02
n = 0,2×10
n = 2

w = n × Ar
w = 2 (32+3×16)
w = 2 × 80
w = 160