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4. 5. 6 In the case of conductivity measurement; find three difference between NaCl and CaCo3. Explain the following terms: a) Strong electrolytes b) Weak electrolytes c) Degree of dissociation Write the conclusion of the experiment.

4. 5. 6 In the case of conductivity measurement; find three difference between NaCl and CaCo3. Explain the following terms: a) Strong electrolytes b) Weak electrolytes c) Degree of dissociation Write the conclusion of the experiment.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
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Objective DETERMINE ION CONCENTRATION IN A SOLUTION 1. Determine the various conductivity of serial sodium chloride solution and calcium carbonate solution. Observe the relationship between conductivity and concentration in a solution. 2. Introduction Conductivity is the ability of a solution to pass an electric current. Compounds dissolved in water will take up ionized state. These electrically changed ions enable the passage of current through the solution. The electric conductivity of aqueous solutions depends on several parameters: a) b) c) d) Concentration of the solution Degree of dissociation of the substance Mobility of the ions Charge of the ions Measurement of the conductivities of the same electrolyte at different concentrations enables several important characteristic data of the substance to be determined. Also conductivity is used to determine the purity of a solution or to indicate the total of concentration of all various ions in that solution. Conductivity can be used to measure concentration of a compound dissolved in water; the level of conductivity referred to standard tables or graphs (calibration curve) that convert this to concentration.
Transcribed Image Text:Objective DETERMINE ION CONCENTRATION IN A SOLUTION 1. Determine the various conductivity of serial sodium chloride solution and calcium carbonate solution. Observe the relationship between conductivity and concentration in a solution. 2. Introduction Conductivity is the ability of a solution to pass an electric current. Compounds dissolved in water will take up ionized state. These electrically changed ions enable the passage of current through the solution. The electric conductivity of aqueous solutions depends on several parameters: a) b) c) d) Concentration of the solution Degree of dissociation of the substance Mobility of the ions Charge of the ions Measurement of the conductivities of the same electrolyte at different concentrations enables several important characteristic data of the substance to be determined. Also conductivity is used to determine the purity of a solution or to indicate the total of concentration of all various ions in that solution. Conductivity can be used to measure concentration of a compound dissolved in water; the level of conductivity referred to standard tables or graphs (calibration curve) that convert this to concentration.
Evaluation 1. 4. 5. 6 Record the data in tables below. No Solution 1 2 3 4 5 6 NaCl 0.5 mol/L NaCl 1.0 mol/L Sample contains NaCl CaCo3 0.5 mol/L CaCo3 1.0 mol/L Sample contains CaCo3 Conductivity in (mS/cm) 26 27 54 0.147 0.078 0.071 In the case of conductivity measurement; find three difference between NaCl and CaCo3. Explain the following terms: a) Strong electrolytes b) Weak electrolytes c) Degree of dissociation Write the conclusion of the experiment.
Transcribed Image Text:Evaluation 1. 4. 5. 6 Record the data in tables below. No Solution 1 2 3 4 5 6 NaCl 0.5 mol/L NaCl 1.0 mol/L Sample contains NaCl CaCo3 0.5 mol/L CaCo3 1.0 mol/L Sample contains CaCo3 Conductivity in (mS/cm) 26 27 54 0.147 0.078 0.071 In the case of conductivity measurement; find three difference between NaCl and CaCo3. Explain the following terms: a) Strong electrolytes b) Weak electrolytes c) Degree of dissociation Write the conclusion of the experiment.
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