The Unknown Acid H₂X Can Be Neutralized Completely by NaOH

question 12

Multiple Choice

The unknown acid H₂X can be neutralized completely by NaOH according to the following equation: H₂X(aq) + NaOH(aq) → Na₂X + H₂O
To completely neutralize this reaction,250 mL of 0.13 M NaOH were needed.How many moles of H₂X were present?

• A)0.033
• B)0.065
• C)0.016
• D)3.8

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