Please answer both \"how does the experimentally determined acetate concentratio
ID: 504396 • Letter: P
Question
Please answer both "how does the experimentally determined acetate concentration.." questions. The original concentration of the buffer (acetate) is given to us and is 1.0 M. Thank you! Volume of HCl at equivalence point: /90mL. Show the calculations that are used to experimentally determine from the titration data the acetate concentration of the buffer: volume Q equ I. point 2 13.0 m L Concentra Hen rtcu 0.13s M ml 0.107m 0.13 SM 11.0mL 2. S mmoi Buffer How does the experimentally determined acetate concentration compare to the assigned concentration? Volume of NaOH at equivalence point: J2. 50mu Show the calculations that are used to determine the acetic acid concentration of the buffer from Volume e equil. to inti 1 the titration data: SomL Conc. of Nao H: 0,12SM moles Nao H- 0.125 M t I? Soml 2.4 mmol 2.44 mmol o ml a D.098 M as How does the experimentally determined acetic acid concentration compare to the assigned concentration?Explanation / Answer
Buffer = acetate + acetic acid
1.0 M = acetate + acetic acid
With HCl, the concentration of acetate = 0.107 M found
The experimental value found is much lower than the actual value of acetate component in the buffer. The concentration of acetate must be higher to achieve the needed 1.0 M total concentration for the given buffer.
With NaOH, concentration of acetic acid component of buffer = 0.098 M
Again the experimental value for acetic acid in the buffer is found to be lower than the actual value needed to achieve the molar concentration of the buffer.