the standard reduction potenital of a silver chloride electrode is 0.2 V and that of a silver electrode is 0.79 V. The maximum amount of AgCl that can

Question

the standard reduction potenital of a silver chloride electrode is 0.2 V and that of a silver electrode is 0.79 V. The maximum amount of AgCl that can

the standard reduction potenital of a silver chloride electrode is 0.2 V and that of a silver electrode is 0.79 V. The maximum amount of AgCl that can dissolve in `10^(6)`L of a 0.1 M `AgNO_(3)` solution is:
A. 0.5 mmol
B. 1.0 mmol
C. 2.0 mmol
D. 2.5 mmol

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - B
`({:(AgCl +1e^(-)toAg+Cl^(-) " " E^@=0.2 V),(" " Ag to Ag^+ +1e^(-) " " E^@= -0.79 V):})/ {:"AgCl" overset(1e^(-))toAg^+ + Cl^(-) " " E^@=-0.59 V:}`
`E^@=0.0599/n"log" K implies -0.59=0.059/1"log" K_(SP)`
`implies K_(SP)=10^(-10)`
Now solubility of AgCl in 0.1 M `AgNO_3`
`S(S+0.1)=10^(-10) implies S=10^(-9)` mol/L
Hence 1 mole dissolves in `10^6` solution
hence in `10^6` L amount that dissolves in 1 m mol.