Respuesta :
According to the given statement The pH of the solution ( Buffer ) approximately = 4.44.
How is pH determined?
There are two ways to measure pH: colorimetric method with indicator fluids or sheets and electrochemically with electrodes and a millivoltmeter for greater accuracy (pH meter).
Briefing:
pKa = 4.74
Acid concentration = 0.130 M
Base concentration = 0.065 M
Calculate the value of the pH of the Buffer solution
pH equals pka plus log (base / acid)--- ( 1 )
∴ pH of the solution = 4.74 + log ( 0.065 / 0.130 )
= 4.74 + ( -0.30 )
= 4.44
We can conclude that The pH of the solution ( Buffer ) approximately = 4.44.
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The complete question is -
What is the pH of a solution that results from mixing together equal volumes of a 0.130 M solution of acetic acid and a 0.065 M solution of sodium hydroxide? (The pKa of acetic acid is 4.74)
