Emily did a reaction in a beaker last week in the lab and forgot to label it. What’s left in the beaker is aluminum metal coated with iron, and a pile of aluminum chloride on the bottom of the beaker. Since the beaker was left out all week, assume there was water in it at one time that has now all evaporated. a.) Write a chemical equation for the reaction that happened. b.) Emily separated the iron from the leftover aluminum, and isolated 13.482 g. How many grams of reactant metal was needed to make that amount of iron metal? c.) Based on your work from part (b), how many grams of aluminum chloride should there be in the bottom of the beaker?
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.
- Emily did a reaction in a beaker last week in the lab and forgot to label it. What’s left in the beaker is aluminum metal coated with iron, and a pile of aluminum chloride on the bottom of the beaker. Since the beaker was left out all week, assume there was water in it at one time that has now all evaporated.
a.) Write a chemical equation for the reaction that happened.
b.) Emily separated the iron from the leftover aluminum, and isolated 13.482 g. How many grams of reactant metal was needed to make that amount of iron metal?
c.) Based on your work from part (b), how many grams of aluminum chloride should there be in the bottom of the beaker?
#1:
Since Al metal lies above iron(Fe) in the electrochemical series, Al is more reactive and can replace iron(Fe) from its salt solution.
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