The Isoelectric Point Is

question 28

Multiple Choice

The isoelectric point is

• A) the pH at which a substance has no net charge
• B) the pH at which a substance has a net positive charge
• C) the pH at which a substance has a net negative charge
• D) the pH at which a substance has no charge groups of any kind

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Definitions:

Confidence Intervals

A range of values, derived from the sample data, that is believed to contain the true population parameter with a certain level of confidence.

Point Estimate

A single value estimate used to approximate a population parameter, derived from sample data.

Margin of Error

A statistic expressing the amount of random sampling error in a survey's results, which represents the extent to which the survey results might differ from the true population values.

Finite Population

A population with a limited number of elements or units, making it possible to enumerate all members of the population.