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Calculate the percent ionization of formic acid solutions having the following concentrations. a) 1.20M b)0.450M c)0.130M...

Calculate the percent ionization of formic acid solutions having the following concentrations.

a) 1.20M

b)0.450M

c)0.130M

d)5.10 x 10^-2

Solutions

Expert Solution

a) 1.20M

formic acid Ka = 1.77 x 10^-4

ionisation% = sqrt(Ka/C)   x100

                = sqrt(1.77 x 10^-4/1.2) x100

                  = 1.21     x 10^-2 x100

                  = 1.21%

b)0.450M

ionisation% = sqrt(Ka/C)   x100

ionisation% = sqrt(1.77 x 10^-4/0.45) x100

                  = = 1.98%

                

c)0.130M

ionisation% = sqrt(1.77 x 10^-4/0.13) x100

                       = 3.68%

d)5.10 x 10^-2

ionisation% = sqrt(1.77 x 10^-4/5.10 x 10^-2) x100

                       = 5.89%

queen_honey_blossom answered 11 months ago
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