The formula for alum is KAl(SO4)2 x 12 H2O. All of the atoms in this formula contribute to the molar mass. When you add up all the masses in the formula, the molar mass is 474.39 grams/mole. The molar mass of aluminum is 26.98. If you started this experiment with 1.063 grams of aluminum foil, what is the theoretical yield of Alum? Give your answer to 1 decimal place. __________________________ The actual yield of alum in the lab was 17.8 grams. What percentage yield is this? Give your answer to 1 decimal place.
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.
The formula for alum is KAl(SO4)2 x 12 H2O. All of the atoms in this formula contribute to the
molar mass. When you add up all the masses in the formula, the molar mass is 474.39
grams/mole. The molar mass of aluminum is 26.98.
- If you started this experiment with 1.063 grams of aluminum foil, what is the theoretical yield
of Alum? Give your answer to 1 decimal place. __________________________
- The actual yield of alum in the lab was 17.8 grams. What percentage yield is this? Give your
answer to 1 decimal place. ____________________________
Formula for alum
formula mass of alum
molar mass of aluminium g /mol
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