Recent questions in Chemistry

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1 answer 53 views

Calculate the formal charge on each atom in the molecule CO3^2-.

asked Jan 23 in Chemical bonding by StefanieBret (2.1k points)

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1 answer 52 views

Calculate the formal charge on each atom in SO4 2- ion.

asked Jan 23 in Inorganic Chemistry by TroyWitcher8 (2.1k points)

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1 answer 52 views

Calculate the formal charge of the sulfur atom in the sulfite ion (SO3) using the formula for formal charge calculation.

asked Jan 23 in Inorganic Chemistry by EloisaLeavit (1.5k points)

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1 answer 53 views

Calculate the formal charge of the oxygen atom and the chlorine atom in the perchlorate ion, ClO₄⁻. Show your work and explain how you arrived at your answer.

asked Jan 23 in Inorganic Chemistry by AzucenaGrasb (1.6k points)

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1 answer 36 views

Calculate the formal charge of the nitrogen atom in the molecule NH3. Show your work and explain the significance of the result.

asked Jan 23 in Chemical bonding by Maura45O7086 (2.5k points)

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1 answer 74 views

Calculate the formal charge of oxygen in the molecule SO2.

asked Jan 23 in Chemical bonding by MoniqueBrins (1.9k points)

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1 answer 51 views

Calculate the formal charge of nitrogen in the nitrogen dioxide (NO2) molecule.

asked Jan 23 in Inorganic Chemistry by AubreyWoore (2.4k points)

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1 answer 51 views

Calculate the formal charge of nitrogen in the molecule of ammonia (NH3) assuming it has single covalent bonds.

asked Jan 23 in Chemical bonding by LouiePartrid (1.8k points)

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1 answer 56 views

Calculate the formal charge of nitrogen in the molecule NO₃⁻.

asked Jan 23 in Chemical bonding by CheryleCass8 (1.7k points)

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1 answer 61 views

Calculate the formal charge of nitrogen in the molecule NO3-.

asked Jan 23 in Chemical bonding by TereseAbner (1.8k points)

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1 answer 58 views

Calculate the formal charge of each atom in the molecule SO3.

asked Jan 23 in Chemical bonding by ThedaP243851 (2.4k points)

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1 answer 57 views

Calculate the final temperature when 25 grams of aluminum at 80°C is placed in 100 grams of water at 25°C. The specific heat capacity of aluminum is 0.90 J/g°C and the specific heat capacity of water is 4.18 J/g°C.

asked Jan 23 in ThermoChemistry by Sterling80B (2.1k points)

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1 answer 60 views

Calculate the Faraday constant for a half-cell reaction in which the electrode potential is 0.32 V and one mole of electrons are exchanged during the reaction. Express your answer in units of coulombs per mole.

asked Jan 23 in ElectroChemistry by Phillipp57B1 (2.3k points)

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1 answer 59 views

Calculate the extent of polarization for a cell in which a copper electrode is coupled with a silver electrode at 25°C. The copper electrode has a potential of -0.34 V and the silver electrode has a potential of 0.80 V. The initial concentration of copper ions and silver ions in the solution are 0.001 M and 0.01 M, respectively. The total resistance of the cell (including both the electrolyte and the external circuit) is 10 ohms. Assume that the transfer coefficient for both the copper and silver ions is 0.5, and the Faraday constant is 96,485 C/mol.

asked Jan 23 in ElectroChemistry by RogerDenning (2.4k points)

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1 answer 58 views

Calculate the expected boiling point of lithium fluoride (LiF) using its experimental melting point and the heat of fusion, assuming it behaves ideally.

asked Jan 23 in Inorganic Chemistry by NataliaCaple (2.1k points)

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1 answer 72 views

Calculate the exchange current density of a copper-copper(II) ion electrode at 25 °C, given that the standard potential of the electrode is +0.34 V versus the standard hydrogen electrode and the transfer coefficient of the electrode reaction is 0.5.

asked Jan 23 in ElectroChemistry by AlexK0785479 (1.8k points)

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1 answer 57 views

Calculate the exchange current density for the redox reaction: Fe2+ + Cr2O72- + 14H+ → 2Fe3+ + 2Cr3+ + 7H2O Given that the standard potential for the reaction at 25°C is 1.33 V, the gas constant is 8.314 J/mol K, and the temperature is 298 K.

asked Jan 23 in ElectroChemistry by DarbyJackey7 (1.4k points)

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1 answer 53 views

Calculate the exchange current density for a Zinc electrode immersed in a solution containing 0.1 M Zinc ions at 25 degrees Celsius, given that the standard potential of the Zinc half-reaction is -0.76 V and the transfer coefficient is 0.5. (Assume concentration polarization effects to be negligible.)

asked Jan 23 in ElectroChemistry by KassieStarns (2.3k points)

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1 answer 38 views

Calculate the exchange current density for a zinc electrode immersed in a 1.0 M solution of zinc sulfate at 25°C when the overpotential is 0.05 V. The standard reduction potential for the Zn2+/Zn couple is -0.76 V. The transfer coefficient is 0.5. Assume that the concentration of the electrolyte does not change significantly during the reaction.

asked Jan 23 in ElectroChemistry by TroyWitcher8 (2.1k points)

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1 answer 67 views

Calculate the exchange current density for a redox reaction where the standard potential is 0.7 V, and the transfer coefficient is 0.5, given that the rate constant for the reaction is 5 × 10^-7 mol/cm^2*s.

asked Jan 23 in ElectroChemistry by AndrewSisley (2.1k points)

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