How many milliliters of 0.0695 M Ca( OH) 2would be required to exactly neutralize 176 mL of 0.217 M HCl?
Normality= molarity× n-factor.
n-factor is no.of H+ for an acid and no.of OH- for a base.
n-factor for HCl =1
n-factor for Ca(OH)2 =2.
Normality of Ca(OH)2 , N1 =( 0.0695 ×2) N
Normality of HCl,N2 = 0.217 N
We know
N1V1 = N2 V2
=> V1 = (N2V2 )÷ N1
=> V1 = (176×0.217)÷(0.0695×2)
=274.76 mL
Answer is 274.76 mL
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