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Given a 0.1 M NH4Cl solution: a) Which is the pH of this solution? b) If...

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Chemistry

Given a 0.1 M NH4Cl solution: a) Which is the pH of thissolution? b) If 100 mL of 0.1 M HCl solution are added to 100 mL ofthe original solution, which is the pH? c) And if 100 mL of 0.1 MNH3 are added to 100 mL of the original solution? Data: kb(NH3 ) =1.8 10^-5 .

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Ans a 01 M NH4Cl solution NH4Cl is the salt of weak base NH4OH and strong acid HCl and therefore its pH can be calculated by using the formula pH 12 pKw logKb logC 1 Where Kw Ionic product of water whose value 10 x 1014 So pKw logKw log 10 x 1014 14 Kb Dissociation constant of base So pKb logKb log 18 x 105 474 C Concentration of salt    See Answer
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