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[" 12.FeroH) "(2)" is diacidic base has ...

[" 12.FeroH) "_(2)" is diacidic base has "K_(b_(1))=10^(-4)" and "K_(b_(2))=2.5times10^(-6)],[" What is the concentration of "Fe(OH)_(2)" in "0.1M" Fer "NO_(3)" ) "_(2)" solution? "],[[" (a) "4times10^(-9)," (b) "2.5times10^(-6)," (c) "10^(-10)," (d) "1],[hline]" .How many em effels "]

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Fe(OH)_(2) is diacidic base has K_(b1)=10^(-4) and K_(b2)=2.5xx10^(-6) What is the concentration of Fe(OH)_(2) in 0.1 M Fe(NO_(3))_(2) solution?

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