A Compound Has the Empirical Formula CoCl₃ ∙ 5NH₃

question 12

Multiple Choice

A compound has the empirical formula CoCl₃ ∙ 5NH₃. One mole of it yields two moles of silver chloride when treated with silver nitrate. Ammonia is not removed by treatment with concentrated sulfuric acid. A reasonable formula for the compound is ________.

• A) [Co(NH₃)₅]Cl₃
• B) CoCl₃ ∙ 5NH₃
• C) [Co(NH₃)₄Cl]Cl₂ ∙ NH₃
• D) [Co(NH₃)₅Cl]Cl₂
• E) [Co(NH₃)₄Cl₂]Cl ∙ NH₃

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Definitions:

Correlational

Referring to a type of research design that examines the relationship between two or more variables to determine if they are associated in some way.

Longitudinal Research

A research design that involves repeated observations of the same variables over a period of time, extending from months to years.

Cross-Sectional

This observational study method examines data collected from a whole population or a selected portion of it at one specific time.

Basic

Basic commonly refers to something that forms an essential foundation or starting point; fundamental.