Suppose you have 50.0 mL of a solution of an unknown concentration of hydrochloric acid HCl solution. You titrate the HCl solution with a 0.1 M solution of calcium hydroxide Ca(OH)2 and use 13.5 mL of Ca(OH)2 to reach the endpoint. 4a) What is the molarity of the hydrochloric acid HCl solution? 4b) What is the pH of hydrochloric acid HCl solution
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.
- Suppose you have 50.0 mL of a solution of an unknown concentration of hydrochloric acid HCl solution. You titrate the HCl solution with a 0.1 M solution of calcium hydroxide Ca(OH)2 and use 13.5 mL of Ca(OH)2 to reach the endpoint.
4a) What is the molarity of the hydrochloric acid HCl solution?
4b) What is the pH of hydrochloric acid HCl solution?
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