Hitunglah volume gas berikut pada STP 6gram gas metana C2 H6(Ar C=12 H=1)

Mapel: Kimia
Kelas: X
Materi: Stoikiometri
Kata Kunci; persamaan Gas Ideal

Jawab

Mr C2H6
Mr 2× Ar C + 6× Ar H
Mr 2×12+6×1
Mr = 24+6
Mr = 30g/mol

n= gr/Mr
n= 6/30
n= 0.2mol

V= n×STP
V= 0,2×22,4
V= 4,48L

Stoikiometri
kelas 10

C2H6
Mr = 2 Ar C + 6 Ar H
= 2(12) + 6(1)
= 30 g/mol

n = m/Mr
= 6/30
= 0,2 mol

V saat STP
= n x Vm , dimana Vm = 22,4 L
= 0,2 x 22,4
= 4,48 L