Phenolphthalein Is an Acid-Base Indicator That Is Colorless in Its

question 2

Multiple Choice

Phenolphthalein is an acid-base indicator that is colorless in its acid form and pink in its basic form, changing at pH = 8.5. Bromcresol green is yellow in its acidic form and blue in its basic form, changing at pH = 4.8. A solution is colorless in phenolphthalein and blue in bromcresol green. Therefore we can conclude that the pH of the solution is ____.

• A) exactly 7.0
• B) greater than 8.5
• C) between 7.0 and 8.5
• D) between 4.8 and 8.5
• E) less than 4.8

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Definitions:

Fixed Input(s)

Factors of production, such as land or machinery, that cannot be adjusted in the short term.

Short Run

A time period during which at least one input is fixed and cannot be adjusted by a firm.

Diseconomies Of Scale

Occur when a company grows so large that the costs per unit increase. It is the opposite of economies of scale.

Long-Run Average Total Cost Curve

A graphical representation showing the lowest possible cost at which any given level of output can be produced in the long run.