PRE-LABORATORY QUESTIONS Gven the following two reactants, predict the products of the two reactions. write a balanced equation for each one. Both reactions are acid-base neutralization reactions. aj hydrochloric acid + sodium hydroxide ? +? bsulphuric acid + potassium hydroxide ? + ? 2. How many grams of KHP, KHC8H4O4, are needed to react with 38.56 mL of a 0.2500 M sodium hydroxide solution? 3. How many millilitres of a 0.500 M sodium hydroxide solution are necessary to react with 0.250 grams of KHP? 4. 0.150 grams of KHP was titrated with sodium hydroxide. If 29.98 mL of sodium hydroxide was used to reach the end point, what is the molarity, M, of the sodium hydroxide solution? 169

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A: The chemical equation for the neutralization reaction is: HCl + NaOH → NaCl + H2O

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.