A Metal Object Is to Be Gold-Plated by an Electrolytic

question 102

Multiple Choice

A metal object is to be gold-plated by an electrolytic procedure using aqueous AuCl₃ electrolyte.Calculate the number of moles of gold deposited in 3.0 min by a constant current of 10.A.

• A)6.2 × 10^-3 mol
• B)9.3 × 10^-3 mol
• C)1.8 × 10^-2 mol
• D)3.5 × 10^-5 mol
• E)160 mol

Understand the relationship and trade-off between Type I and Type II errors.

Identify scenarios of Type I and Type II errors.

Understand the definition and consequences of Type I and Type II errors, including their probabilities (α and β).

Recognize the importance of the null hypothesis and the conditions under which it can be rejected.