A)
1mole of Ca(OH)2 reacts with 2mole of HCl so if we consider same concentration of Ca(OH)2 and HCl then moles of Ca(OH)2 = (25 * 0.1 / 1000 ) = 0.0025 moles ..
so , Moles of HCl = 2 * 0.0025 = 0.005 moles .
so, volume of HCl used for this titration = ( 0.005 / 0.1 ) * 1000 = 50 ml . answer...
B). Moles of HCl required For This Titration = 0.005 Moles.
C). Ca(OH)2 + 2HCl ------- CaCl2 + 2H2O ;
D). number of moles of calcium hydroxide that reacted. = Half mole of HCl reacted = 0.005/2 = 0.0025 moles . answer.
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