Question

What is the standard reduction potential for CO₂ when measured against a SCE (Saturated Calomel Electrode) reference electrode, which has a standard potential of 0.2444 V?

a) Positive value
b) 0.2444 V
c) Negative value
d) Not enough information

Answer 1

The standard reduction potential for CO₂ when measured against a SCE reference electrode is a negative value (Option C).

Step-by-step explanation:

The standard reduction potential for CO₂ when measured against a SCE (Saturated Calomel Electrode) reference electrode, which has a standard potential of 0.2444 V, can be determined by subtracting the standard potential of the reference electrode from the standard reduction potential of CO₂. Given that the standard potential of the SCE reference electrode is 0.2444 V, and considering that the standard reduction potential of CO₂ is negative.

Therefore, the standard reduction potential for CO₂ when measured against a SCE (Saturated Calomel Electrode) reference electrode cannot be specified as a concrete value from the provided options without additional information. The standard potential of the SCE is given as 0.2444 V.

Thus, the correct answer is option C) Negative value.