Calculate the PH of a Solution That Is 0 $\mathrm { HNO } _ { 2 }$

question 42

Multiple Choice

Calculate the pH of a solution that is 0.240 mol L^-1 in nitrous acid ( $\mathrm { HNO } _ { 2 }$ ) and 0.320 mol L^-1 in potassium nitrite ( $\mathrm { KNO } _ { 2 }$ ) .The acid dissociation constant of nitrous acid is 4.50 × $10 ^ { - 4 }$ .

• A)12.885
• B)4.461
• C)3.222
• D)10.528
• E)3.472

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