At 20 °C, a 0

question 138

Multiple Choice

At 20 °C, a 0.376 mol L^-1 aqueous solution of ammonium chloride has a density of 1.0045 g mL^-1. What is the mass % of ammonium chloride in the solution? The formula weight of NH₄Cl is 53.50 g mol^-1.

• A)0.381
• B)0.705
• C)0.374
• D)2.68
• E)2.00

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Definitions:

Genetic Traits

Characteristics or features that are passed from parents to offspring through genes.

Mitosis

A process of cell division that results in two genetically identical daughter cells from a single parent cell, crucial for growth and repair in multicellular organisms.

Natural Selection

The process through which species survive and evolve, in which individuals with phenotypes that are more adaptive to the environmental conditions survive and reproduce with greater success than do individuals with phenotypes that are less adaptive.

Charles Darwin

An English naturalist, geologist, and biologist best known for his contributions to the science of evolution.