16 Questions
Why are crystalline solids considered as true solids?
because of their repeated pattern of arrangement.
Why are the solid-state and molten state of ionic crystals considered poor electrical conductors?
because their particles are held firmly thus there is no enough space for the ions to move around which make them as non-conductors of electricity.
What do plateaus in a heating and cooling curve of a substance imply?
a phase change occurs
What does dynamic equilibrium mean?
a state where the forward and reverse reactions are occurring at the same rate, resulting in no net change over time.
What is the definition of an electrolyte?
A compound that dissolves by breaking into ions and conducting electricity in solution
Which term refers to the boiling point of a solution minus the boiling point of the pure solvent?
Boiling point elevation
Which compound will cause the greatest increase in the boiling point when added to an aqueous solution?
2 moles of MgSO₄
Which solution will show the smallest amount of freezing point depression?
C₆H₁₂O₆ (glucose)
Which factor increases the rate of a chemical reaction?
Smaller particle size
Which factor does NOT affect the rate of a chemical reaction?
Container shape
What is the molarity of a 20.0% phosphoric acid (H3PO4) solution with a density of 1.12 g/mL?
2.7 M
How many grams of Ag2CO3 are required to react completely with 28.5 mL of 1.00 M NaOH solution?
3.93 g
Which property differentiates electrolytes from nonelectrolytes?
Electrolytes conduct electricity, while nonelectrolytes do not.
Which of the following is a nonelectrolyte?
C2H5OH
Which 0.1 M solution would have the lowest vapor pressure at 25°C?
Al(NO3)3 solution
Which observation(s) reflect(s) colligative properties?
I and II only
Test your knowledge on electrolytes and boiling point elevation with this quiz. Identify the properties of electrolytes and understand the concept of boiling point elevation in solutions.
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