Identify each as a strong electrolyte, weak electrolyte, or nonelectrolyte:a. Al2(CO3)3                                            ["weak electrolyte", "nonelectrolyte", "strong                                     electrolyte"]           b. HC2H3O2                                                        ["nonelectrolyte", "strong electrolyte", "weak                                     electrolyte"]           c. CO2                                                 ["strong electrolyte", "weak electrolyte", "nonelectrolyte"]           d. Ca(NO3)2                                                ["weak electrolyte", "nonelectrolyte", "strong electrolyte"]

Question
Asked May 13, 2019
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Identify each as a strong electrolyte, weak electrolyte, or nonelectrolyte:

a. Al2(CO3)3                          

                  ["weak electrolyte", "nonelectrolyte", "strong                                     electrolyte"]           

b. HC2H3O2                                        

                ["nonelectrolyte", "strong electrolyte", "weak                                     electrolyte"]           

c. CO2                                                 ["strong electrolyte", "weak electrolyte", "nonelectrolyte"]           

d. Ca(NO3)2                                                ["weak electrolyte", "nonelectrolyte", "strong electrolyte"]           

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Expert Answer

Step 1

Electrolytes are the substances which ionize in water to give component ions. The ions are positive (cations) and negative (anions).

Now if an electrolyte completely dissociated in water, then it is called as strong electrolyte. And if an electrolyte is feebly dissociated into its ion then it is called as weak electrolyte.

Non electrolytes are the substances which do not ionize in water.

 

Step 2

Generally,

  1. Strong acids, strong base and the salts of any acid or base are strong electrolytes.
  2. Weak acids and weak base are weak electrolytes.
Step 3

Al2(CO3)3: this is an unstable compound and when dissolved in water gets converted to precipitate aluminium hydroxid...

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