An Unknown Hydrate of Calcium Nitrate,Ca(NO₃)2 • XH₂O,is Heated to Give

question 35

Multiple Choice

An unknown hydrate of calcium nitrate,Ca(NO₃) 2 • XH₂O,is heated to give 30.5% water.What is the water of crystallization (X) for the hydrate?

• A)2
• B)3
• C)4
• D)6
• E)10

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Definitions:

Standard Deviation

A gauge for assessing the extent of scatter among numbers in a group.

Boxplot

A graphical representation of data points that displays the distribution's quartiles, median, and potential outliers.

Five-Number Summary

A concise statistical summary comprising the minimum, first quartile, median, third quartile, and maximum of a data set.

Stem-and-Leaf Plot

A graphical representation of a data set where each data value is split into a "stem" and a "leaf", allowing for easy visualization of data distribution.