Answer the following questions using the data in the table below. See the calculations section (Part V). Mass empty dish 17.54 Mass dish and hydrated CoCl2 18.88 Mass after heating
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Answer the following questions using the data in the table below. See the calculations section (Part V).
|
Mass empty dish |
17.54 |
|
Mass dish and hydrated CoCl2 |
18.88 |
|
Mass after heating dish and anhydrous CoCl2 |
18.27 |
Calculate the mass hydrated CoCl2 and the mass of water of hydration.
Calculate the % water of hydration.
Calculate the mass of anhydrous CoCl2 and the moles of anhydrous CoCl2.
Calculate the moles of water of hydration.
Determine the chemical formula of the hydrate.
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