fatihahalhusna
A. 8 gram He = 8/4 x 6.02 x 10^23 = 1,24 x 10^24 atom b. r = 0,3 mm = 0,03 cm V tetes = 4/3 3.14.(0.03)^3 =3,3912 x 10^-4 mL massa jenis = 13600 kg/m3 = 13,6 kg/L = 13,6 gr/mL massa Hg =3.3912x 10^-4 x 13.6 = 4,612 x 10^-3 gram banyak partikel Hg = 4,612 x^-3/202 x 6.02x10^23 = 1.375 x 10^19 atom
b. r = 0,3 mm = 0,03 cm
V tetes = 4/3 3.14.(0.03)^3 =3,3912 x 10^-4 mL
massa jenis = 13600 kg/m3 = 13,6 kg/L = 13,6 gr/mL
massa Hg =3.3912x 10^-4 x 13.6 = 4,612 x 10^-3 gram
banyak partikel Hg = 4,612 x^-3/202 x 6.02x10^23 = 1.375 x 10^19 atom