A Solution Is Prepared by Dissolving 49

question 161

Multiple Choice

A solution is prepared by dissolving 49.3 g of KBr in enough water to form 473 mL of solution. Calculate the mass % of KBr in the solution if the density is 1.12 g mL^-1.

• A) 10.4%
• B) 8.57%
• C) 10.1%
• D) 11.7%
• E) 9.31%

---

Definitions:

Triplet

A term in quantum physics describing a system or state with three closely related energy levels or particles.

Quartet

In NMR spectroscopy, a signal pattern of four peaks indicating the splitting of a signal due to coupling with three equivalent protons.

Doublet

In spectroscopy, a pair of closely spaced energy levels or lines, often observed in the spectra of atoms and molecules.

Doublet

A pair of closely spaced lines or peaks observed in spectroscopy or other forms of analysis, indicating two related quantum states.