What is the van 't Hoff factor (i) for a strong electrolyte like Na2SO4 in solut

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Question: What is the van \'t Hoff factor (i) for a strong electrolyte like Na2SO4 in solution? (2023)

Options:

Correct Answer: 3

Exam Year: 2023

Solution:

Na2SO4 dissociates into 3 ions (2 Na⁺ and 1 SO4²⁻), so i = 3.

What is the van 't Hoff factor (i) for a strong electrolyte like Na2SO4 in solution? (2023)

What is the van 't Hoff factor (i) for a strong electrolyte like Na2SO4 in solution? (2023)

Step 1: Understand that a strong electrolyte is a substance that completely dissociates into ions when dissolved in water.
Step 2: Identify the chemical formula of the strong electrolyte, which in this case is Na2SO4.
Step 3: Determine how many ions Na2SO4 breaks into when it dissolves in water.
Step 4: Recognize that Na2SO4 dissociates into 2 sodium ions (Na⁺) and 1 sulfate ion (SO4²⁻).
Step 5: Count the total number of ions produced: 2 (from Na⁺) + 1 (from SO4²⁻) = 3.
Step 6: Conclude that the van 't Hoff factor (i) for Na2SO4 is 3.

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