Which of These Neutralization Reactions Has a PH < 7

question 187

Multiple Choice

Which of these neutralization reactions has a pH < 7 when equal molar amounts of acid and base are mixed?

• A)CH₃CO₂H(aq)+ NaOH(aq)⇌ H₂O(l)+ NaCH₃CO₂(aq)
• B)HCl(aq)+ C₅H₅N(aq)⇌ C₅H₅NHCl(aq)
• C)HBr(aq)+ KOH(aq)⇌ H₂O(l)+ KBr(aq)
• D)H₂SO₄(aq)+ 2 NaOH(aq)⇌2 H₂O(l)+ Na₂SO₄(aq)

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Definitions:

Nominal Data

Data categorized into discrete groups or categories that cannot be ranked or ordered.

Z-test

A technique in statistics for determining the distinction between the means of two large-sample populations with specified variances.

Chi-squared Test

A rephrased definition: A statistical test that measures the discrepancy between observed results and the results expected under a specific hypothesis, often used to assess goodness of fit or independence in categorical variables.

Chi-squared Method

A statistical test used to determine the level of significance of the observed association between categorical variables.