November 2019 1 900 Report
Massa atom relatif (Ar) H = 1, O = 16; tetapan Avogadro = 6,02 x 10^23, maka massa 1 molekul air (H2O) adalah sekitar ...

A. 1,66 x 10^24 gram

B. 3 x 10^-23 gram

C. 3 x 10^23 gram

D. 1,08 x 10^-23 gram

E. 18 gram

(Mohon bantuannya ya...)
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