Chapter 8: QBE (page 182)

Find the activity (not the activity coefficient) of the ${(C_{3} H_{7})}_{4} N^{+}$ (tetra propylammonium) ion in a solution containing ${(C_{3} H_{7})}_{4} N^{+} {Br}^{-} plus 0.0050 M {({CH}_{3})}_{4} N^{+} {CI}^{-}$

Short Answer

Expert verified

The activity of ${(C_{3} H_{7})}_{4} N^{+}$ ion is 0.0046.

Step by step solution

Define the formula for activity species.

Any species' activity value is calculated by multiplying its concentration by its activity coefficient.

For a species C, the activity is given by

$A_{c} = [C] γ_{c}$

where,

A - Activity

[c] - Concentration

- Activity coefficient.

Calculate the activity species.

Given

$0.0050 M (C_{3} H_{7}) N^{+} {Br}^{-}$ plus $0.0050 M {({CH}_{3})}_{4} N^{+} {CI}^{-}$

The ionic strength of this solution is $μ = 0.010 M$

The size of the ion is ${(C_{3} H_{7})}_{4} N^{+}$ is 800pm

$μ = 0.010 M,$

At $γ = 0.912$ for an ion of charge ${}_{-}^{+}1$ with $α = 800 pm$

The activity ofrole="math" localid="1654762931695" ${(C_{3} H_{7})}_{4} N^{-}$ by using activity coefficient and concentration values

$A_{{(C_{3} H_{7})}_{4}} N^{+} = [{(C_{3} H_{7})}_{4} N^{+}] γ_{{(C_{3} H_{7})}_{4} N^{-}} = (0.0050) (0.912) = 0.0046$

The activity of ${(C_{3} H_{7})}_{4} N^{+}$ ion is 0.0046.

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Find the activity (not the activity coefficient) of the ${(C_{3} H_{7})}_{4} N^{+}$ (tetra propylammonium) ion in a solution containing ${(C_{3} H_{7})}_{4} N^{+} {Br}^{-} plus 0.0050 M {({CH}_{3})}_{4} N^{+} {CI}^{-}$

Short Answer

Step by step solution

Define the formula for activity species.

Calculate the activity species.

One App. One Place for Learning.

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Find the activity (not the activity coefficient) of the (C3H7)4N+(tetra propylammonium) ion in a solution containing(C3H7)4N+Br-plus0.0050M(CH3)4N+CI-

Short Answer

Step by step solution

Define the formula for activity species.

Calculate the activity species.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Inorganic Chemistry

Ionic and Molecular Compounds

Making Measurements

The Earths Atmosphere

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Organic Chemistry

Study anywhere. Anytime. Across all devices.

Find the activity (not the activity coefficient) of the ${(C_{3} H_{7})}_{4} N^{+}$ (tetra propylammonium) ion in a solution containing ${(C_{3} H_{7})}_{4} N^{+} {Br}^{-} plus 0.0050 M {({CH}_{3})}_{4} N^{+} {CI}^{-}$