Rank the Following 0

question 104

Multiple Choice

Rank the following 0.100 M solutions in order of increasing H₃O⁺ concentration: HOCl, K_a = 4.0 × 10⁻⁸; HCN, K_a = 6.2 × 10⁻¹⁰; NH₄⁺, K_a = 5.6 × 10⁻¹⁰

• A)HOCl < HCN < NH₄⁺
• B)HOCl < NH₄⁺ < HCN
• C)HCN < NH₄⁺ < HOCl
• D)HCN < HOCl < NH₄⁺
• E)NH₄⁺ < HCN < HOCl

---

Definitions:

Airborne Precautions

Infection control measures taken to prevent disease transmission through air currents, relevant for pathogens that can travel on dust particles or small respiratory droplets.

Standard Precautions

A set of infection control practices used to prevent transmission of diseases that can be acquired by contact with blood, bodily fluids, non-intact skin, and mucous membranes.

Tuberculosis (TB)

A serious infectious disease caused by the bacterium Mycobacterium tuberculosis that primarily affects the lungs but can spread to other parts of the body.

AFB Smear

A laboratory test that involves staining a sample and examining it under a microscope to identify acid-fast bacilli, commonly used to diagnose tuberculosis.