Объяснение:
w(Ca)=n×Ar(Ca)/Mr(Ca(OH)2)=1•40/(40+(16+1)•2) = 40/74 = 0.5405 или 54.05%
w(Ca)=n×Ar(Ca)/Mr(Ca(HCO3)2)= 1•40/(40+(1+12+3•16)•2) = 40/162 = 0.2469 или 24.69%
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Объяснение:
w(Ca)=n×Ar(Ca)/Mr(Ca(OH)2)=1•40/(40+(16+1)•2) = 40/74 = 0.5405 или 54.05%
w(Ca)=n×Ar(Ca)/Mr(Ca(HCO3)2)= 1•40/(40+(1+12+3•16)•2) = 40/162 = 0.2469 или 24.69%