1) A solution is made by mixing 175 ml of 0.100 M formic acid ( ka = 1.7 x 10^-4 ) with 175 ml of 0.100 M sodium formate. what is the PH of thie solution ?

2) a solution is made by mixing 225 ml of 0.100 M formic acid (ka = 1.7 x 10^-4 ) and 210 ml of 0.100 M sodium formate. 3.2 ml of 10.0 M sodium hydroxide are added to this solution. what is the PH ?

3) 25.00 ml of 0.105 solution of benzoic acid (ka = 6.5 x 10^-5 ) is titrated with 0.143 M sodium hydroxide solution. what is the PH of the acid before any base solution is added ?

Question

1) A solution is made by mixing 175 ml of 0.100 M formic acid ( ka = 1.7 x 10^-4 ) with 175 ml of 0.100 M sodium formate. what is the PH of thie solution ?

2) a solution is made by mixing 225 ml of 0.100 M formic acid (ka = 1.7 x 10^-4 ) and 210 ml of 0.100 M sodium formate. 3.2 ml of 10.0 M sodium hydroxide are added to this solution. what is the PH ?

3) 25.00 ml of 0.105 solution of benzoic acid (ka = 6.5 x 10^-5 ) is titrated with 0.143 M sodium hydroxide solution. what is the PH of the acid before any base solution is added ?

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