Question

Hitung jumlah partikel dari:
a) 2 gram gas H₂
b) 4 gram karbon
c) 36 gram H₂O

Answer 1

Massa= n. Mr
X=n.L

A.
2=n.2
n=1 mol
X=1 . 6,02x10^23=6,02x10^23 molekul

B.
4=n.12
n=0,333mol
X=0,333 . 6,02x10^23 = 2,0067 x 10^23 atom

C.
36=n.18
n=2 mol
X=2 . 6,02x10^23 = 12,04x10^23 molekul