How Many Moles of Ions Are Released When 0

question 60

Multiple Choice

How many moles of ions are released when 0.27 mol of cobalt(II) chloride, CoCl₂, is dissolved in water?

• A)0.81 mol
• B)0.54 mol
• C)0.27 mol
• D)0.18 mol
• E)0.090 mol

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Definitions:

Kruskal-Wallis Test

A nonparametric statistical test used to compare three or more independent groups of sampled data to determine if there is a difference in their medians.

Random Samples

A subset of a statistical population in which each member of the subset has an equal probability of being chosen, fundamental for unbiased statistical analysis.

Independent Samples

Distinct groups of data that have no relationship with each other, often used in hypothesis testing.

Common Standard Deviation

A measure used in statistics that quantifies the extent to which values in a dataset or within different subsets of a dataset vary from the mean value of that dataset.