Масса одной молекулы MeHCO₃ равна 1,66·10⁻²⁵ кг. Определите металл. 1 а.е.м. = 1,66·10⁻²⁷ кг.
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Mg
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Sr
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K
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Ca
📝 Detailed explanation
Mr = 1,66·10⁻²⁵ / 1,66·10⁻²⁷ = 100. Mr(HCO₃) = 1+12+48 = 61. Me = 100 − 61 = 39 → K (калий).
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