The Chemical Acidity of a Solution Is Measured in Units $\mathrm { pH } = - \log \left[ \mathrm { H } ^ { + } \right]$

question 248

Multiple Choice

The chemical acidity of a solution is measured in units of pH: $\mathrm { pH } = - \log \left[ \mathrm { H } ^ { + } \right]$ , where $\left[ \mathrm { H } ^ { + } \right]$ is the hydrogen ion concentration in the solution.What is $\left[ \mathrm { H } ^ { + } \right]$ if the $\mathrm { pH } = 3.8$

• A)3.800
• B) \(6.31 \times 10 ^ { - 4 }\)
• C) \(6.31 \times 10 ^ { - 3 }\)
• D) \(1.58 \times 10 ^ { - 3 }\)
• E) \(1.58 \times 10 ^ { - 4 }\)

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Definitions:

Vertical Summation

A method used to derive the market demand curve by adding the quantities demanded by all individuals at each price level, vertically.

Horizontal Summation

A method used to determine the total market demand or supply curve by adding individual demands or supplies at each price level, assuming they are compatible.

Public Good

A commodity or service that is provided without profit to all members of a society, either by the government or a private individual or organization.

Nonrival

A characteristic of certain goods where consumption by one individual does not reduce the amount available for consumption by others.