The pH and electrical conductivity of four different mixtures were measured: Mixtures Conductivity (mA) pH A 0.1 mol L–1 HCl 260 1 B 0.1 mol L–1 CH3COOH 5 3 C Mixture made by mixing equal volumes of 0.2 mol L–1 HCl and 0.2 mol L–1 NaCl 340 1 D Mixture made by mixing equal volumes of 0.2 mol L–1 HCl and 0.2 mol L–1 NaCH3COO 80 3 Explain why the conductivity of mixture A is higher than that of mixture B, yet the pH of A is lower than the pH of B. Include relevant equations in your answer. Explain why the pH mixture of C is the same as the pH mixture of A. Why is the conductivity of mixture C larger than the conductivity of mixture A?
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Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
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Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
The pH and electrical conductivity of four different mixtures were measured:
Mixtures Conductivity
(mA)
pH
A 0.1 mol L–1 HCl 260 1
B 0.1 mol L–1 CH3COOH 5 3
C Mixture made by mixing equal volumes of
0.2 mol L–1 HCl and 0.2 mol L–1 NaCl
340 1
D Mixture made by mixing equal volumes of
0.2 mol L–1 HCl and 0.2 mol L–1 NaCH3COO
80 3
- Explain why the conductivity of mixture A is higher than that of mixture B, yet the pH of A is lower than the pH of B. Include relevant equations in your answer.
- Explain why the pH mixture of C is the same as the pH mixture of A.
- Why is the conductivity of mixture C larger than the conductivity of mixture A?
- Why is the pH of mixture D the same as the pH of mixture B?
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