Consider the Titration of 100

question 84

Multiple Choice

Consider the titration of 100.0 mL of the weak diprotic acid H₂A (0.10 M) with 0.20 M NaOH.What are the major species at each of the following points in the titration? (Water is always assumed to be a major species. )
-After 200.0 mL of 0.20 M NaOH is added

• A)HA^-
• B)H₂A,HA^-
• C)HA^-,A^2-
• D)H₂A
• E)none of these

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Definitions:

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis, significant in hypothesis testing.

Level of Significance

The probability of rejecting the null hypothesis in a statistical test when it is actually true; a measure of the risk of making a Type I error.

Proportions

A statistical measure that reflects the size of a part compared to the whole, typically expressed as a fraction or a percentage.

Level of Significance

The probability of rejecting the null hypothesis in a statistical test when it is actually true, typically set prior to conducting the test.