Kadar C Dalam senyawa CO2 adalah.... (Ar C=12, O=16) a.2,73% b.12% c.27,30% d.72,73% e.6, 72%

Question

Kimia Diposting : 2017-05-08 Diupdate : 2021-06-02 DzikDzikk

Pertanyaan

Kadar C Dalam senyawa CO2 adalah.... (Ar C=12, O=16)
a.2,73%
b.12%
c.27,30%
d.72,73%
e.6, 72%

Answer 1

Ar C = 12
Mr CO2 = 44

kadar C
= Ar C / Mr CO2 x 100
= 12/44 x 100
= 27,30% (C)