Ответы на вопрос:
а) mr(koh) = 56
w(k) = ar(k) *n / mr(koh) *100% = 39*1 / 56 *100% = 69,6%
w(o) = ar(o) * n / mr(koh) *100% = 16*1 / 56 *100% = 28,6%
w(h) = ar(h) * n / mr(koh) *100% = 1*1 / 56 *100% = 1,8%
б) mr(teo3) = 176
w(te) = ar(te) *n / mr(teo3) *100% = 128 * 1 / 176 *100% = 73%
w(o) = ar(o) * n / mr(teo3) *100% = 16 * 3 / 176 *100% = 27%
в) mr(cuso4) = 159,5
w(cu) = ar(cu) * n / mr(cuso4) *100% = 63,5 * 1 / 159,5 *100% = 40%
w(s) = ar(s) * n / mr(cuso4) *100% = 32 *1 / 159,5 *100% = 20%
w(o) = ar(o) * n / mr(cuso4) *100% = 16 * 4 / 159,5 *100% = 40%
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