Jika Ar Na = 23, Ar S = 32, Ar O = 16, Ar H = 1, maka massa molekul relatif (Mr) Na2S2O3. 5H2O adalah...
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Jika Ar Na = 23, Ar S = 32, Ar O = 16, Ar H = 1, maka massa molekul relatif (Mr) Na2S2O3. 5H2O adalah...
1 Jawaban
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1. Jawaban gitapst
Mr Na2S2O3.5H2O
= (ar Na x 2) + (ar S x 2) + (ar O x 3) + (ar H x 10) + (ar O x 5)
=(23 x 2) + (32 x 2) + (16 x 3) + (1 x 10) + (16 x 5)
= 46 + 64 + 48 + 10 + 80
= 248 gr/mol.