Ответ:
Mr(BaSO4) = 137 + 32 + 16*4 = 233
W(Ba) = Ar(Ba) * n / Mr(BaSO4) *100% = 137 *1 / 233 *100% = 59%
W(S) = Ar(S) * n / Mr(BaSO4) *100% = 32 * 1 / 233 *100% = 14%
W(O) = Ar(O) * n / Mr(BaSO4) *100% = 16 * 4/ 233 *100% = 27%
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Ответ:
Mr(BaSO4) = 137 + 32 + 16*4 = 233
W(Ba) = Ar(Ba) * n / Mr(BaSO4) *100% = 137 *1 / 233 *100% = 59%
W(S) = Ar(S) * n / Mr(BaSO4) *100% = 32 * 1 / 233 *100% = 14%
W(O) = Ar(O) * n / Mr(BaSO4) *100% = 16 * 4/ 233 *100% = 27%