Ответ:
Объяснение:
Mr(NaHCO3) = 23 + 1 + 12 + 16 * 3 = 84
w(Na) = 23/84 * 100% = 27,4%
w(H) = 1/84 * 100% = 1,2%
w(C) = 12/84 * 100% = 14,3%
w(O) = 48/84 * 100% = 57,1%
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Ответ:
Объяснение:
Mr(NaHCO3) = 23 + 1 + 12 + 16 * 3 = 84
w(Na) = 23/84 * 100% = 27,4%
w(H) = 1/84 * 100% = 1,2%
w(C) = 12/84 * 100% = 14,3%
w(O) = 48/84 * 100% = 57,1%