You Have 75

question 32

Multiple Choice

You have 75.0 mL of 0.17 M HA.After adding 30.0 mL of 0.10 M NaOH,the pH is 5.50.What is the K_a value of HA?

• A) 3.2 × 10^-6
• B) 9.7 × 10^-7
• C) 0.31
• D) 7.4 × 10^-7
• E) none of these

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Definitions:

Cost Curve

is a graphical representation of how the cost of producing varies with different levels of output, typically including curves like average cost and marginal cost.

Output

The quantity of goods or services produced by a firm or industry.

Short Run

A period in economics during which at least one factor of production is fixed, constraining the firm's capacity to adjust to changes in demand or supply.

Declines

A decrease in value, amount, or quality over a certain period.