What Is the PH of a 0

question 106

Multiple Choice

What is the pH of a 0.20 M solution of ammonia? The K_b value for ammonia is 1.8 * 10^-5.

• A) 9.56
• B) 9.26
• C) 4.74
• D) 11.28
• E) 2.72

---

Definitions:

NMR

Nuclear Magnetic Resonance, a spectroscopic technique used to observe local magnetic fields around atomic nuclei, providing detailed information about the structure, dynamics, and chemical environment of molecules.

Singlet

A term used in quantum mechanics and spectroscopy to describe a state in which all electrons in an atom or molecule are spin-paired, showing no magnetic field external to the system.

Doublet

In spectroscopy, a pattern indicating two closely linked energy levels or particles, often seen in NMR or EPR spectroscopy.

NMR

Nuclear Magnetic Resonance, a spectroscopic technique used to study the structure of molecules by observing the interaction of nuclear spins with magnetic fields.