AP Chemistrymediummcq1 pt
25.0 mL of 0.100 M HCl is neutralized by NaOH of unknown concentration. If 20.0 mL of NaOH is required, what is the NaOH molarity?
A.0.125 M
B.0.0800 M
C.0.250 M
D.0.100 M
Explanation
Core Concept
Moles HCl = 0.100 × 0.0250 = 0.00250 mol = moles NaOH (1:1). M = 0.00250 mol ÷ 0.0200 L = 0.125 M.
Correct Answer
A0.125 M
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