Объяснение:
Mr (KNO3) = 39 + 14 + 16*3 = 101
W (N) = 14*1 / 101 * 100% = 13,8%
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Объяснение:
Mr (KNO3) = 39 + 14 + 16*3 = 101
W (N) = 14*1 / 101 * 100% = 13,8%