One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； March 5th
Thread Content
Multiple-choice question: It is analyzed that the potential value of a pH meter’s calomel electrode becomes unstable above ( ) °C; at temperatures above 100°C, the electrode has a lifespan of only 9 hours. When such temperatures are reached, an silver-silver chloride electrode should be used instead. A、60 B、70 C、80 D、90 Answer: B、70
Analysis shows that the potential value of the pH meter’s calomel electrode becomes unstable above (B)°C, and its lifespan is only 9 hours at temperatures above 100°C; a silver-silver chloride electrode should be used at such temperatures. A、60 B、70 C、80 D、90
Analysis shows that the potential value of the pH meter’s calomel electrode becomes unstable above (B)°C, and its lifespan is only 9 hours at temperatures above 100°C; a silver-silver chloride electrode should be used at such temperatures. A、60 B、70 C、80 D、90