Calculate the Percent Ionization of Nitrous Acid in a Solution $\left( \mathrm { HNO } _ { 2 } \right)$

question 47

Multiple Choice

Calculate the percent ionization of nitrous acid in a solution that is 0.210 mol L^-1 in nitrous acid $\left( \mathrm { HNO } _ { 2 } \right)$ and 0.290 mol L^-1 in potassium nitrite ( $\mathrm { KNO } _ { 2 }$ ) .The acid dissociation constant of nitrous acid is $4.50 \times 10 ^ { - 4 }$

• A)58.0
• B)0.154
• C)16.6
• D)2.74 × \(10 ^ { - 3 }\)
• E)1.55