Sulfur Trioxide Can Undergo Decomposition According to the Equation 2SO₃

question 13

Multiple Choice

Sulfur trioxide can undergo decomposition according to the equation 2SO₃ → 2SO₂ + O₂
For this reaction, rate = -0.5Δ[SO₃ ]/Δt = k[SO₃]². If the reaction rate is 1.75 × 10^-7 mol L^-1 min^-1 when the concentration of sulfur trioxide is 5.4 × 10^-3 mol L^-1, what is the value of the rate constant k?

• A) 3.2 × 10^-5 L mol^-1 min^-1
• B) 1.6 × 10^-5 L mol^-1 min^-1
• C) 6.0 × 10^-3 L mol^-1 min^-1
• D) 3.0 × 10^-3 L mol^-1 min^-1
• E) 1.6 × 10^-2 L mol^-1 min^-1

Differentiate between null and alternative hypotheses in the context of a one-sample Z-test.

Calculate the standard error of the mean (SEM) and understand its significance in the Z-test.

Apply critical thinking to assess the validity of test results based on Z-values and critical values.

Understand the effect of sample size and population standard deviation on the standard error of the mean.

---

Definitions:

External Human Resource Sources

External methods or channels through which organizations recruit or hire new employees, such as job boards or recruitment agencies.

Internal Human Resource Sources

Recruiting methods that involve filling job vacancies with current employees or individuals already known to the organization, such as through promotions or internal transfers.

HR Demand

The projected requirement for human resources in an organization based on future business activities, strategic goals, and workforce planning.

External Human Resource Sources

Refers to methods of filling job vacancies or acquiring talent from outside the organization, including recruitment agencies, job boards, and social media.