Problem: Which of the following statements is true?A. All soluble ionic compounds are weak electrolytes.B. Weak electrolytes dissociate completely in water.C. Aqueous solution of sucrose is a strong electrolyte.D. Electrolyte solutions conduct heat.E. NH3 is a weak electrolyte.

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Establish the definition of electrolytes and examine each statement and determine which is true

Recall that electrolytes are classified as:

• Strong electrolytes: dissociate completely in water; include soluble ionic salts, strong acids, and bases

a. Ionic salts: those that follow the rules of being soluble in solubility rules

b. Strong acids: HCl, HBr, HI, HNO3, H2SO4, HClO4, HClO3

c. Strong bases: Group 1A and 2A (Ca and lower) metals paired with OH, H, O2–, or NH2

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Problem Details

Which of the following statements is true?

A. All soluble ionic compounds are weak electrolytes.

B. Weak electrolytes dissociate completely in water.

C. Aqueous solution of sucrose is a strong electrolyte.

D. Electrolyte solutions conduct heat.

E. NH3 is a weak electrolyte.


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