Formic Acid,which Is a Component of Some Insect Venoms,has a K_a

question 120

Multiple Choice

Formic acid,which is a component of some insect venoms,has a K_a = 1.8 × 10^-4.What is the [H₃O⁺] in a solution that is initially 0.10 M formic acid,HCOOH?

• A)4.2 × 10^-3 M
• B)8.4 × 10^-3 M
• C)1.8 × 10^-4 M
• D)1.8 × 10^-5 M
• E)1.8 × 10^-6 M

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Definitions:

Mean Fat Content

The average amount of fat present in a given food item or set of food items.

Confidence Interval

A span of values calculated from the statistics of a sample, which is anticipated to enclose the value of a not yet identified population parameter.

Margin of Error

A numerical value that indicates the extent of variability due to chance in the findings of a poll.

First Word

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