Of the Bases NaOH, H₂O, CN^-, SO₄^2-, and HPO₄^2-, Which

question 69

Multiple Choice

Of the bases NaOH, H₂O, CN^-, SO₄^2-, and HPO₄^2-, which is the weakest? (K_a for HCN is 6.2  10^-10; K_a for HSO₄^- is 1.2  10^-2; and K_a3 for H₃PO₄, is 4.8  10^-13)

• A) CN^-
• B) HPO₄^2-
• C) SO₄^2-
• D) NaOH
• E) H₂O

Comprehend the implications of economic efficiency and external benefits for market outcomes.

Calculate measures of central tendency (mean, median, mode).

Understand the effects of skewed distributions on measures of central tendency.

Construct and interpret bar graphs.

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Definitions:

Difference Of Two Squares

A mathematical expression of the form \(a^2 - b^2\), which can be factored into \((a + b)(a - b)\).

Surface Area

The total area that the surface of a three-dimensional object occupies, measured in square units.

Right Circular Cylinder

A 3-dimensional solid shape with straight parallel sides and a circular base exactly above or below each other.

Difference Of Two Squares

A special case of factoring in algebra that refers to the difference between two square numbers being factorable into the product of their sum and difference.