A.) Diketahui :
96gr O2
Mr O2 → 32g/mol

Jawaban :

n=gr/Mr 
n= 96: 32= 3mol

B) Diketahui :

88gr CO2
Mr → CO2 → 12+32 = 44g/mol

Jawaban:

n= gr/Mr
n= 88/44
n= 2mol

a) 96 gram oksigen (O₂)
m = 96 gram
M_r = 32
n =....

n = ^m / _Mr
n = ⁹⁶ / ₃₂ = 3 mol

b) 88 gram karbondioksida (CO₂)

m = 84 gram
M_r = 44
n =....

n = ^m / _Mr
n = ⁸⁸ / ₄₄ = 2 mol