Given the Following Half-Reactions Occurring in the Silver-Zinc Hearing Aid

question 115

Multiple Choice

Given the following half-reactions occurring in the silver-zinc hearing aid battery,calculate the voltage at 25 °C of this battery.
ZnO(s) + H₂O(l) + 2 e^- → Zn(s) + 2 OH^-(aq) E° = -1.260 V
Ag₂O(s) + H₂O(l) + 2 e^- → 2 Ag(s) + 2 OH^-(aq) E° = +0.342 V

• A)+1.602 V
• B)+1.402 V
• C)+0.858 V
• D)-0.858 V
• E)-1.602 V

Identify the effects of loan repayments on the outstanding balance under simple interest.

Apply simple interest calculations to real-world scenarios related to savings, loans, and investments.

Understand the calculation and application of simple interest in various financial contexts.

Analyze changes in interest rates and their impact on loan repayments and investment returns.

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