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Laboratory work №7: pH measurements

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In this laboratory work you will learn how to make the pH indicator yourself and apply it

Long-term plan sectionSubsections of the standard curriculumLearning objectives
Chemical reactions                 Natural acids and alkalis. Indicators. Laboratory experiment No. 7 “Study of acidity and alkalinity of the medium of solutions”.7.3.4.1 be aware that the properties “acidity” and “soapiness” may be signs of some natural acids and alkalis; 7.3.4.2 know chemical indicators–methyl orange, litmus, phenolphthalein and their color change in various media; 7.3.4.3 be able to determine acids and alkalis using a universal indicator based on the pH scale;
  • Red cabbage
  • Knife
  • Plate
  • Glass
  • Water
  • Soda
  • Acetic acid

Course Content