A Voltaic Cell Consists of a Mn/Mn²⁺ Electrode (E° =

question 47

Multiple Choice

A voltaic cell consists of a Mn/Mn²⁺ electrode (E° = -1.18 V) and a Fe/Fe²⁺ electrode (E° = -0.44 V) . Calculate [Fe²⁺] if [Mn²⁺] = 0.050 M and E_cell = 0.78 V at 25°C.

• A) 0.040 M
• B) 0.24 M
• C) 1.1 M
• D) 1.8 M
• E) None of these choices is correct.

---

Definitions:

Device Memory

The physical hardware components within a device (such as RAM or storage) used to store data temporarily or permanently.

Cache

A hardware or software component that stores data so future requests for that data can be served faster.

Bootstrap Program

A small initial program that starts a larger system or program, like the boot sequence of an operating system.

RAM

Stands for Random Access Memory, a type of computer memory that can be accessed randomly at any time, used by computers to store the working data and machine code currently being used.