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.
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–