The data from my observations is given below: Concentration of Standardized NaOH - 1.00 mol/L Mass concentration of acetic acid - 2.40 g/L Trial 1 Trial 2 Measured pH of the acetic acid solution 3.07 3.05 Mass of acetic acid solution taken for titration 20.0 g 20.0 g Initial buret reading of NaOH titrant 0.00 mL 0.00 mL Final buret reading of NaOH titrant 0.82 mL 0.79 mL Net volume of NaOH 0.82 mL 0.79 mL Millimoles of NaOH to end point of titration 0.82 mmol 0.79 mmol Millimoles of acetic acid in sample 0.82 mmol 0.79 mmol Molar concentration of acetic acid solution 0.043 mol/L 0.041 mol/L Calculated molar mass of acetic acid g/mol g/mol Average molar concentration of acetic acid for the samples titrated: 0.042 mol/L Average pH: 3.06 Question: Calculate the corresponding [H3O+], compute the corresponding concentration of A- and HA, and calculate the dissociation constant Ka Thank you!
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The data from my observations is given below:
Concentration of Standardized NaOH - 1.00 mol/L
Mass concentration of acetic acid - 2.40 g/L
|
Trial 1 |
Trial 2 |
|
|
Measured pH of the acetic acid solution |
3.07 |
3.05 |
|
Mass of acetic acid solution taken for titration |
20.0 g |
20.0 g |
|
Initial buret reading of NaOH titrant |
0.00 mL |
0.00 mL |
|
Final buret reading of NaOH titrant |
0.82 mL |
0.79 mL |
|
Net volume of NaOH |
0.82 mL |
0.79 mL |
|
Millimoles of NaOH to end point of titration |
0.82 mmol |
0.79 mmol |
|
Millimoles of acetic acid in sample |
0.82 mmol |
0.79 mmol |
|
Molar concentration of acetic acid solution |
0.043 mol/L |
0.041 mol/L |
|
Calculated molar mass of acetic acid |
g/mol |
g/mol
|
Average molar concentration of acetic acid for the samples titrated: 0.042 mol/L
Average pH: 3.06
Question:
Calculate the corresponding [H3O+], compute the corresponding concentration of A- and HA, and calculate the dissociation constant Ka
Thank you!
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