Salt, vinegar, soda ash, etc. are all commonly used substances in the home kitchen, and you can use

Updated on Kitchen 2024-08-07
1 answers
  1. Anonymous users2024-01-24

    D soda ash is the common name of sodium carbonate, which can react with acid to form carbon dioxide gas, and can be used to distinguish salt and soda ash with vinegar; The main component of vinegar is acetic acid, which can be used to test whether the egg shell can be dissolved in acid; The main component of scale is calcium carbonate, which can react with acid and can be removed with vinegar; A silver nitrate solution is also required to test for chloride ions, so the presence of chloride ions in tap water cannot be tested.

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OK. Because soda ash is sodium carbonate is salt not alkali, but its aqueous solution is alkaline, the chemical formula is Na2CO3, table salt is sodium chloride, and the acetic acid in vinegar contains C2H3COO. Vinegar and soda ash react to generate carbon dioxide gas, the equation is C2H3COOH + Na2CO3 = C2H3COONa + H2O + CO2, vinegar and sodium chloride do not react, so it can be identified.