t Print calculator Periodic Table Question 16 of 16 Incorrect Incorrect Incorrec
ID: 512395 • Letter: T
Question
t Print calculator Periodic Table Question 16 of 16 Incorrect Incorrect Incorrect Sapling Learning Map Which of the following are errors that can occur when measuring the pH with a glass combination electrode? sodium error at high pH M uncertainty in the pH of the standard buffer solutions small selectivity for He over other ions junction potential the variable potential of the internal AglAgol reference electrode There is additional feedback available! contact us help about us careers partners privacy policy terms of useExplanation / Answer
The cation similar to the proton (Na+) in solution can exchange with the protons in the glass membrane of the pH electrode. This results in error of potentials across the glass membrane and thus error in pH Measurement occurs.
Liquid junction potential error
In glass-electrode, the reference half-cell contains a porous ceramic type of liquid junction.The porous ceramic plug, which vary with the ionic composition of the solution under test produces error.
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