A 1.45-g sample of phosphorus burns in air and forms 2.57 g of a phosphorus oxide. Calculate the empirical for-mula of the oxide. (Hint: Determine the mass of oxygen in the 2.57 g of phosphorus oxide by determining the differ-ence in mass before and after the phosphorus burns in air.)
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.
A 1.45-g sample of phosphorus burns in air and forms
2.57 g of a phosphorus oxide. Calculate the empirical for-
mula of the oxide. (Hint: Determine the mass of oxygen in
the 2.57 g of phosphorus oxide by determining the differ-
ence in mass before and after the phosphorus burns in air.)
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