Ответ:
Mr(SO₃) = 32 + 3×16 = 32+48 = 80 а.е.м.
ω(S) = 32/80 × 100% = 40%
ω(O) = 100% - 40% = 60%
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Ответ:
Mr(SO₃) = 32 + 3×16 = 32+48 = 80 а.е.м.
ω(S) = 32/80 × 100% = 40%
ω(O) = 100% - 40% = 60%