Algebra 2 Applications of Logarithms Worksheet

Algebra 2

Applications of Logarithms Worksheet

Use the table and equation from the in-class worksheet to complete these questions:

1)

Find the loudness in decibels of music with a sound intensity of 1 watt per square meter.

2)

The sound of heavy traffic is how many times as intense as the sound of normal

conversation?

3)

Give an example of a sound that is about 10,000 times the intensity of a noisy kitchen.

4)

The sound intensity of traffic on a busy toll road is measured at 5.87 10

loud is this sound as measured by the decibel scale?

3

w / m2 . How

Use the pH formula and table from the in class worksheet to complete these questions:

5)

The gastric juice in your digestive system has a pH of 1.7 and many soft drinks have a pH

of 3.0. (a) Which is more acidic, gastric juice or soft drinks? (b) What is the concentration

of hydrogen ions, [H+], in the more acidic solution?

6)

Bile can range from a concentration of pH 9 to pH 11. The stronger alkaline solution is

how many times as concentrated as the weaker alkaline solution?

7)

Seawater has a pH of 8.5. (a) Is seawater acidic or alkaline? (b) What is the concentration

of hydrogen ion, [H+], in seawater?

8)

A soil sample from a desert has a concentration of hydrogen ions of 3.16 10

liter. What is the pH?

10

moles per

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