What Is the PH of a Solution Prepared by Mixing

question 20

Multiple Choice

What is the pH of a solution prepared by mixing 0.250 mol of hydrazoic acid, HN₃, and 0.500 mol of sodium azide, NaN₃, to make 1.00 liter of solution?
( K _a = 1.9×10 ^{- 5})

• A) 4.42
• B) 5.02
• C) 9.58
• D) 4.72
• E) 8.98

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Definitions:

Marginal Product

The supplementary yield obtained from utilizing an additional unit of a specific input, assuming all other inputs remain constant.

Labor Supply Curve

A graphical representation showing the relationship between the quantity of labor that workers are willing to offer and the wage rate.

Opportunity Cost

Opportunity cost represents the benefits an individual, investor, or business misses out on when choosing one alternative over another.

Marginal Product

The additional output resulting from using one more unit of a particular input, holding other inputs constant.