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Author: Anonymous (page 42,532)

In determining the total solids in tap water, I found 0.034…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
In determining the total solids in tap water, I found 0.034 g of solids left after evaporating 65 mL of tap water. What is the concentration of solids in the tap water expressed in ppm?
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A cell has a standard cell potential of +0.177 V at 298 K. W…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
A cell has a standard cell potential of +0.177 V at 298 K. What is the value of the equilibrium constant for the reaction if n = 3 where R = 8.314 J/K-mol and F = 96,488 J/V-mol?
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If the equilibrium constant for a two-electron redox reactio…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
If the equilibrium constant for a two-electron redox reaction at 298 K is 1.5 x 10-4, calculate the corresponding E°. Given R = 8.314 J/K-mol and F = 96,488 J/V-mol.
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Which of the following equations is the balanced reduction h…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
Which of the following equations is the balanced reduction half reaction for Ag+(aq) + Fe(s) → Fe2+(aq) + Ag(s)?
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What is the oxidation of a pure element?

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
What is the oxidation of a pure element?
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Predict whether the equivalence point for a titration of NH3…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
Predict whether the equivalence point for a titration of NH3 with HCl will be above, below, or at pH 7.0.
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A voltaic cell that uses the reaction Ti3+(aq) + 2 Cr2+(aq)…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
A voltaic cell that uses the reaction Ti3+(aq) + 2 Cr2+(aq) → Ti+(aq) + 2 Cr3+(aq) measures a standard cell potential of 1.19 V. With Eredo = 0.41 V for Cr3+(aq) + e- → Cr2+(aq), calculate the Eredo for the reduction of Ti3+(aq) to Ti+(aq).
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In the reaction I2O3(s) + 5CO(g) → I2(s) + 5CO2(g), which el…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
In the reaction I2O3(s) + 5CO(g) → I2(s) + 5CO2(g), which element undergoes a change of 2 in its oxidation number (could be +2 or -2)?
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For a saturated solution of Co(OH)2, what happens when a str…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
For a saturated solution of Co(OH)2, what happens when a strong acid is added?
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Assuming standard conditions, arrange the following in order…

Posted on: September 25, 2024 Last updated on: December 9, 2024 Written by: Anonymous
Assuming standard conditions, arrange the following in order of increasing strength as oxidizing agents in acidic solution: Cu2+, Cl2, O2.
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