25.0 mL of sulfuric acid is neutralised by 20.0 mL of 0.100 mol/L sodium hydroxide. What is the sulfuric acid concentration?
Answer and explanation
Correct answer: B. 0.0400 mol/L
- Step 1: , and mol. Step 2. mol, so mol/L. Answer: 0.0400 mol/L. Why not the others: 0.0800 mol/L ignores the 1:2 ratio; 0.1600 mol/L doubles it; 0.0250 mol/L is a slip in the volume.
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