The micro-electrode is enclosed in a water jacket with circulating water at a constant temperature of ___________ °C for determination of pH.

The micro-electrode is enclosed in a water jacket with circulating wa

1.	The micro-electrode is enclosed in a water jacket with circulating water at a constant temperature of ___________ °C for determination of pH.
A.	25
B.	34
C.	38
D.	42
Answer» D. 42