Ответ: Ca - 36% Cl - 64%
Объяснение:
Мr(CaCl2) = Ar(Ca) + Ar(Cl) * 2 = 40 + 35,5 * 2 = 111
w(Ca) = Ar(Ca) * n/Мr(CaCl2) = 40/111 * 100% = 36%
w(Cl) = Ar(Cl) * n/Мr(CaCl2) = 35,5 * 2/111 * 100% = 64%
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Ответ: Ca - 36% Cl - 64%
Объяснение:
Мr(CaCl2) = Ar(Ca) + Ar(Cl) * 2 = 40 + 35,5 * 2 = 111
w(Ca) = Ar(Ca) * n/Мr(CaCl2) = 40/111 * 100% = 36%
w(Cl) = Ar(Cl) * n/Мr(CaCl2) = 35,5 * 2/111 * 100% = 64%