Chemistry, 03.10.2021 15:10 TayanaB

Give four method of acid preparation and give two reactions to support your answers

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(i) Hydrogen chloride gas is prepared by treating Sodium chloride with concentrated sulphuric acid. The HCl gas is passed through a drying agent to remove moisture where concentrated sulphuric acid plays the role of dehydrating agent as well.

(ii) NaCl+H2 SO4 →NaHSO 4 +HCl(g)

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Answer from: mermaid1304

Can be prepared by reacting methanol with hydrogen iodine and adding carbon monoxide to the product ( methyl iodide) in order to obtain acetyl iodide. Upon hydrolysis , acetyl iodide yields acetic acid. Acetic acid and chlorine will react a Chloroacetic acid will be formed. CH3COOH+Cl2 gives rise to CICH2CO2H.
Second example : when acetic acid is heated with phosphorus pentachloride , acetyl chloride is obtained. In this reaction : COOH group is converted to COCI group. The side products are phosphorus oxychloride and HCI
Third example: Ethanol and acetic acid react to form ethyl acetate and water according to the equation: C2H5OH + CH3COOH
CH3COOC2H5 + H2O when 2 moles each of ethanol and acetic acid are allowed to react at 100 degrees Celsius in a sealed tube, equilibrium is established when 2/3 of a mole of each of the reactants remains.

Answer from: Quest

The answer to this problem is. 67

Answer from: Quest

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

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