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In: Chemistry

A calibration curve plotting E vs. pTi is used to measure the concentration of Ti2 in...

A calibration curve plotting E vs. pTi is used to measure the concentration of Ti2 in solution at 25 °C using a solid Ti electrode. What is the slope of the calibration curve?

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Expert Solution

This exercise is solved from the begining to the end. The reaction should take place toward the reduction of Ti2+ to Ti taking or toward the oxidation of Ti to Ti2+ giving 2 electrons.

Its potentials are solved by Nernst equation.

In the reduction:                       which potential E0= -1.63V

The Nernst potential is:

Then, its respective graph is:

On? the other hand, its oxidation is:    and its standard potential is E0=1.63V

It Nernst potential equation is:

Its graph is the next one:

queen_honey_blossom answered 2 years ago
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