Phenol Red Indicator Changes from Yellow to Red in the PH

question 61

Multiple Choice

Phenol red indicator changes from yellow to red in the pH range from 6.6 to 8.0. State what color the indicator will assume in the following solution: 0.10 M NaCN

• A) red
• B) yellow
• C) red-yellow mixture
• D) The indicator is its original color.
• E) There is not enough information to answer this question.

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Definitions:

Real Interest Rate

The interest rate adjusted for inflation, reflecting the true cost of borrowing and the real yield to investors.

Real Interest Rate

The interest rate adjusted for inflation, representing the true cost of borrowing and the real yield to savers.

Nominal Interest Rate

The interest rate as stated without adjustment for inflation, representing the actual percentage amount charged for borrowing money.

Inflation Rate

The percentage increase in the price level of goods and services in an economy over a given period of time.