Chemistry High School

A 0.9295 g Sample of Cobalt Chloride Hydrate is heated until it reaches a constant mass of 0.5976 g. Assume that only water is removed. Calculate the Percent of water.

Answers

Answer 1

The percent of water in the cobalt chloride hydrate would be 35.71%

Percent composition

The percent composition of a component in a compound is the mass of that component relative to the mass of the entire compound.  This can be mathematically expressed as:

Percent composition = mass of component/mass of compound x 100%

In order to find the percent water composition in the hydrated salt, the mass of water needs to be obtained.

Mass of the hydrated cobalt chloride sample = 0.9295 g

Mass of the cobalt chloride after removing water = 0.5976 g

Mass of water = mass of hydrated salt - mass of anhydrous salt

                       = 0.9295 - 0.5976

                        = 0.3319 g

Thus, percent water composition = 0.3319/0.9295 x 100%

                                                        = 35.71%

In other words, the percent of water in the cobalt chloride hydrate is 35.71%.

More on percent composition can be found here: https://brainly.com/question/17505281

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