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CHM 101 CHM 101 Past Questions Objective Question
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Question

A 30.0 mL sample of H₂SO₄ requires 45.0 mL of 0.200 M NaOH to reach the equivalence point. What is the concentration of the H₂SO₄?
Options
A 0.150 M
Correct Answer
B 0.300 M
C 0.600 M
D 0.075 M
Correct Answer

Option A is the correct answer.

Detailed Explanation

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O. Moles NaOH = 0.0450 L × 0.200 M = 0.00900 mol. Moles H₂SO₄ = 0.00900/2 = 0.00450 mol. Concentration = 0.00450/0.0300 = 0.150 M.

Hint

The mole ratio is 1:2 (H₂SO₄:NaOH).

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1428 of 1872
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