An unknown mass of Na3PO4(s) is dissolved in water to form 50.00 mL of solution. This is Solution A. Then 10.00 mL of Solution A is diluted with water to 50.00 mL. The final solution is Solution B. 20.00 mL of Solution B contains 4.408 × 1020 sodium ions. (NA = 6.022 × 1023 mol–1) Calculate the mass of Na3PO4(s) that was dissolved to form Solution A.
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.
An unknown mass of Na3PO4(s) is dissolved in water to form 50.00 mL of solution. This
is Solution A.
Then 10.00 mL of Solution A is diluted with water to 50.00 mL. The final solution is
Solution B.
20.00 mL of Solution B contains 4.408 × 1020 sodium ions. (NA = 6.022 × 1023 mol–1)
Calculate the mass of Na3PO4(s) that was dissolved to form Solution A.
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