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stefani

Questions (31)

If we electrolyze a solution of Ni²⁺(aq) to form Ni(s) and use a current of 0.15 amps for 10 minutes, how many grams of Ni(s)
1. 2 answers
2. 909 views
In the production of Al metal by electrolysis, approximately 15 kW⋅h of electrical energy are used to produce each kilogram of
1. 0 answers
2. 361 views
Which of the following reactions does a common alkaline battery, such as those used in portable tape players (think 1990s),
1. 0 answers
2. 420 views
Assuming 100% efficiency, how many kilowatt hours (kW⋅h) of electrical energy are required to produce 1.00 kg of chlorine gas
1. 0 answers
2. 463 views
Determine the equilibrium constant for the following reaction at 25 °C. Cl₂(aq) + 2I⁻(aq) → 2 Cl⁻(aq) + I₂(aq) E° =
1. 0 answers
2. 334 views
In reducing Ag⁺ ion for plating onto jewelry, an operating cell voltage of 4.00 V is required. If you run a business that does
1. 0 answers
2. 388 views
Given the following half-reactions, Ag⁺(aq) + e⁻ → Ag(s) E° = +0.799 V, AgCl(s) + e⁻ → Ag(s) + Cl⁻(aq) E° = +0.222
1. 0 answers
2. 483 views
How many coulombs of charge are required to deposit 1.00 g Ag from a solution of Ag⁺(aq)?
1. 0 answers
2. 422 views
consider an electrochemical cell where the following reaction takes place: 2 Ag⁺(aq) + Cu(s) → 2 Ag(s) + Cu²⁺(aq) Which
1. 0 answers
2. 437 views
Given the following two half reactions: Al³⁺(aq) + 3e⁻ → Al(s) E° = -1.66 V; Cl₂(aq) + 2e⁻ → 2 Cl⁻(aq) E° =
1. 0 answers
2. 430 views
The basic reaction occurring in the cell in which Al₂O₃ and aluminum salts are electrolyzed is Al³⁺ + 3 e⁻ → Al(s).
1. 0 answers
2. 439 views
Determine the cell potential for Ni(s) + Fe²⁺(aq) → Ni²⁺(aq) + Fe(s) where [Ni²⁺] = 0.60 M and [Fe²⁺] = 0.0030 M
1. 0 answers
2. 1,264 views
Consider an electrochemical cell where the following reaction takes place: 3 Sn²⁺(aq) + 2 Al(s) → 3 Sn(s) + 2 Al³⁺(aq)
1. 3 answers
2. 678 views
Determine the cell potential for Mg(s) + 2 Ag⁺(aq) → Mg²⁺(aq) + 2 Ag(s) where [Ag⁺] = 0.30 M and [Mg²⁺] = 0.020 M
1. 1 answer
2. 891 views
Given the following two half reactions: Cd²⁺(aq) + 2e⁻ → Cd(s) E° = -0.40 V; Zr⁴⁺ (aq) + 4e⁻ → Zr(s) E° = -1.53
1. 1 answer
2. 640 views
An electrochemical cell of notation Pd | Pd²⁺ || Cu²⁺ | Cu has E° = -0.65 V. If we know that the standard reduction
1. 1 answer
2. 1,176 views
Given the two following half reactions: Ni²⁺(aq) + 2e⁻ → Ni(s) E° = -0.25 V; Hg²⁺(aq) + 2e⁻ → Hg(l) E° = +0.86
1. 1 answer
2. 371 views
The following redox reaction can be used to form iodine. Br₂(aq) + 2 I -(aq) → 2 Br-(aq) + I₂(aq) ΔG° = -105 kJ What is
1. 1 answer
2. 466 views
E° for the following redox reaction is +1.05 V. 2 Ag⁺ (aq) + Ni(s) → 2 Ag(s) + Ni²⁺(aq) What is ΔG° for this reaction?
1. 1 answer
2. 493 views
Consider an electrochemical cell where the following reaction takes place: 2 Au³⁺(aq) + 3 Zn(s) → 2 Au(s) + 3 Zn²⁺(aq)Wh
1. 1 answer
2. 903 views
A sample of seawater taken from the Atlantic Ocean freezes at –2.14 °C and a sample from the Arctic Ocean freezes at –1.96
1. 3 answers
2. 610 views
Suppose 1.500 g of a compound is dissolved in 35.00 g of camphor. The freezing point of pure camphor is 178.75 °C, the freezing
1. 1 answer
2. 460 views
What is the osmotic pressure (in atm) when 69.7 g of a solute (MW = 2790 g/mol) is dissolved in 1.00 L of a solution at 20 °C?
1. 1 answer
2. 421 views
What is the vapor pressure (in torr) of a solution comprised of 220 g of ethanol (C₂H₅OH) in 870 g of H₂O at 25 °C where
1. 1 answer
2. 422 views
If a solution consists of compounds A and B, and the mole fraction of A = 0.753, what is the mole fraction of B?
1. 1 answer
2. 462 views
What is the freezing point (in °C) of a solution with 60.6 g of NaCl dissolved in 1050 g of H₂O? Assume complete ionization.
1. 1 answer
2. 448 views
What is the vapor pressure (in torr) of a solution comprised of 220 g of CaCl₂ in 870 g of H₂O at 25 °C where H₂O has a
1. 1 answer
2. 465 views
How much energy in kJ is released when 17.55 g of water at 47.5 °C is cooled to –33.5 °C?M.P. = 0 °C; B.P. = 100 °C; All
1. 1 answer
2. 814 views
You are playing volleyball. You hit the volleyball with an initial vertical velocity of 15 feet per second when it is 4 feet
1. 1 answer
2. 820 views
To increase interest in rodeos, the local chapter of the National Rodeo Cowboys Association (NRCA) is offering free roping
1. 1 answer
2. 628 views
1.(a)A centrifuge accelerates from rest with an angular acceleration of 30rad/s^2.What is the angular velocity of the centrifuge
1. 2 answers
2. 786 views

Answers (2)

whoops haha! Al | Al³⁺ || Sn²⁺ | Sn Al³⁺ | Al || Sn | Sn²⁺ Sn | Sn²⁺ || Al³⁺ | Al Sn | Al³⁺ || Al | Sn²⁺
Why did ethnic tensions in Russia and the Republics seldom result in armed conflict before the 1990s?

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