Chapter 8: Q7P (page 183)

Calculate the activity coefficient of ${Zn}^{2 +}$ when $μ = 0.083 M$ by using (a) Equation $8 - 6$ ; linear interpolation in Table $8 - 1$ .

Short Answer

Expert verified

Thus the activity coefficient of ${Zn}^{2 +}$ when $μ = 0.083 M$ is

(a) 0.422 M

(b) 0.432 M

Step by step solution

Calculation the Activity Coefficient using Debye Huckle Equation.

The task is to calculate the activity coefficient of ${Zn}^{2 +}$ when $μ = 0.083 M$ .

In the task (a) we need to find using the equation $8 - 6$ .

Debye Huckle equation role="math" localid="1654853836629" $\log γ = \frac{- 0.51 \times z^{2} \times \sqrt{μ}}{1 + α \sqrt{\frac{μ}{305}}}$

role="math" localid="1654853927016" $\log γ = \frac{- 0.51 \times z^{2} \times \sqrt{0.083}}{1 + 600 \sqrt{\frac{0.083}{305}}} \log γ = - 0.375 γ = 10^{- 0.375} = 0.422 M$

Calculating the Activity Coefficient using Interpolation.

In the task (b) , we need to find the activity coefficient using the equation for interpolation.

$γ = (\frac{0.083 - 0.05}{0.7 - 0.05} \times (0.405 - 0.485)) + 0.485 = 0.432 M$

Thus the activity coefficient of ${Zn}^{2 +}$ when $μ = 0.083 M$ is

(a) 0.422 M

(b) 0.432 M

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Calculate the activity coefficient of ${Zn}^{2 +}$ when $μ = 0.083 M$ by using (a) Equation $8 - 6$ ; linear interpolation in Table $8 - 1$ .

Short Answer

Step by step solution

Calculation the Activity Coefficient using Debye Huckle Equation.

Calculating the Activity Coefficient using Interpolation.

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Calculate the activity coefficient of Zn2+when μ=0.083Mby using (a) Equation 8-6; linear interpolation in Table 8-1.

Short Answer

Step by step solution

Calculation the Activity Coefficient using Debye Huckle Equation.

Calculating the Activity Coefficient using Interpolation.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Chemistry Branches

Physical Chemistry

Making Measurements

Organic Chemistry

The Earths Atmosphere

Ionic and Molecular Compounds

Study anywhere. Anytime. Across all devices.

Calculate the activity coefficient of ${Zn}^{2 +}$ when $μ = 0.083 M$ by using (a) Equation $8 - 6$ ; linear interpolation in Table $8 - 1$ .