A Solution Is Prepared by Adding 100 ML of 0

question 53

Multiple Choice

A solution is prepared by adding 100 mL of 0.2 M hydrochloric acid to 100 mL of 0.4 M sodium formate. Is this a buffer solution, and if so, what is its pH?

• A)It is a buffer, pH > pK _a of formic acid.
• B)It is a buffer, pH < pK _a of formic acid.
• C)It is a buffer, pH = pK _a of formic acid.
• D)It is a buffer, pH = pK _b of sodium formate.
• E)Since hydrochloric acid is a strong acid, this is not a buffer.

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Definitions:

Profit Maximizing

The process of identifying the best price and production level that leads to the highest profit for a business, considering costs and demand.

Marginal Cost Curve

A graph that shows the change in the cost of producing one additional unit of a good or service, typically sloping upwards as output increases.

Market Supply Curve

A graphical representation showing the relationship between the price of a good and the total output of the industry at that price.

Average Variable Costs

The cost that varies with the level of output, divided by the quantity of output produced, reflecting the variable expenses per unit.