Recent questions in Chemistry

0 votes

1 answer 116 views

Calculate the polarization of a cell having an anode made of copper metal immersed in a 1.0 M Cu(NO3)2 solution and a cathode made of silver metal in a 1.0 M AgNO3 solution. Given that the potential of the copper electrode is -0.34 V and that of the silver electrode is 0.80 V. Also, assume that the current density is 0.1 A/cm² and that the temperature is 298 K.

asked Feb 3 in ElectroChemistry by JaimeFuqua07 (2.0k points)

0 votes

1 answer 129 views

Calculate the polarization in an electrochemical cell consisting of a zinc electrode and a copper electrode. The electrode potentials of zinc and copper are -0.76 V and +0.34 V, respectively. The resistance of the electrolyte solution between the electrodes is 10 ohms, and the current flowing through the cell is 0.5 A.

asked Feb 3 in ElectroChemistry by ClydeC545764 (2.2k points)

0 votes

1 answer 137 views

Calculate the pH of a solution with a concentration of 0.01 M HCl.

asked Feb 3 in Chemical reactions by AHIKayleigh (2.3k points)

0 votes

1 answer 119 views

Calculate the pH of a buffer solution that contains 0.2 moles of acetic acid (CH3COOH) and 0.1 moles of sodium acetate (NaCH3COO) dissolved in one liter of solution. The dissociation constant of acetic acid is 1.8 x 10^-5.

asked Feb 3 in Chemical reactions by EdytheEwk100 (2.6k points)

0 votes

1 answer 95 views

Calculate the pH of a buffer solution made by combining equal volumes of 0.1 M acetic acid and 0.1 M sodium acetate. The dissociation constant of acetic acid is 1.8 × 10^-5.

asked Feb 3 in Chemical reactions by LuzMccrary7 (2.5k points)

0 votes

1 answer 125 views

Calculate the pH of a buffer solution consisting of 0.1 M acetic acid and 0.1 M sodium acetate, given that the dissociation constant (Ka) of acetic acid is 1.8x10^-5.

asked Feb 3 in Chemical reactions by TwylaArledge (1.6k points)

0 votes

1 answer 130 views

Calculate the pH of a 0.2 M solution of acetic acid (Ka = 1.8 x 10^-5) at 25°C.

asked Feb 3 in Chemical reactions by Lizzie32E683 (1.8k points)

0 votes

1 answer 126 views

Calculate the pH of a 0.2 M solution of acetic acid (CH3COOH) if the acid dissociation constant (Ka) of acetic acid is 1.8 × 10^-5.

asked Feb 3 in Chemical reactions by Beatris09Q13 (1.9k points)

0 votes

1 answer 127 views

Calculate the pH of a 0.1 M solution of hydrochloric acid assuming complete dissociation. The acid dissociation constant (Ka) for HCl is 1.3 × 10^-6 at 25°C.

asked Feb 3 in Chemical reactions by LeeAlder0448 (1.5k points)

0 votes

1 answer 109 views

Calculate the pH of a 0.1 M solution of hydrochloric acid (HCl) assuming complete dissociation of the acid in water, and identify if the solution is acidic, basic or neutral.

asked Feb 3 in Inorganic Chemistry by EmilySulman6 (2.0k points)

0 votes

1 answer 124 views

Calculate the pH of a 0.1 M solution of acetic acid with a dissociation constant (Ka) of 1.8 x 10^-5.

asked Feb 3 in Chemical reactions by JaneAlbrecht (1.9k points)

0 votes

1 answer 141 views

Calculate the pH of a 0.1 M solution of acetic acid (Ka = 1.8 x 10^-5).

asked Feb 3 in Chemical reactions by MorrisMcGahe (1.7k points)

0 votes

1 answer 123 views

Calculate the pH of a 0.1 M solution of acetic acid (CH3COOH) given that its dissociation constant Ka is 1.8x10^-5.

asked Feb 3 in Chemical reactions by LorenaReinha (1.8k points)

0 votes

1 answer 134 views

Calculate the percentage change in the concentration of reactants and products in a chemical equilibrium when the concentration of a common ion is increased by 0.1M. The equilibrium constant for the reaction is Kc = 1.5 x 10^-5 M at a certain temperature.

asked Feb 3 in Chemical equilibrium by DarylBottoml (2.0k points)

0 votes

1 answer 23 views

Calculate the percent composition of phosphoric acid, H3PO4.

asked Feb 3 in Inorganic Chemistry by KrystleDHage (2.0k points)

0 votes

1 answer 113 views

Calculate the percent composition of copper sulfate pentahydrate (CuSO4 • 5H2O).

asked Feb 3 in Inorganic Chemistry by OctavioDyaso (2.3k points)

0 votes

1 answer 140 views

Calculate the partition function for a system of 300 molecules occupying an energy level of 10 J at a temperature of 300 K using the classical harmonic oscillator model.

asked Feb 3 in Physical Chemistry by Juliana93U49 (2.3k points)

0 votes

1 answer 133 views

Calculate the partition function for a system of 10 molecules of a monoatomic gas confined to a 1-dimensional box of length 1 nm at a temperature of 300 K using the classical and quantum mechanical methods. Then, compare the results obtained and explain the discrepancies observed.

asked Feb 3 in Physical Chemistry by ChloeBodnar (2.0k points)

0 votes

1 answer 155 views

Calculate the partition function (q) and the Helmholtz free energy (A) of an ideal gas containing 2 moles of particles at a temperature of 300 K, assuming the gas is in the canonical ensemble.

asked Feb 3 in Physical Chemistry by JanniePeek84 (2.0k points)

0 votes

1 answer 151 views

Calculate the overpotential of an electrochemical cell where Zinc metal is used as an anode and Copper metal as a cathode. The concentration of Zinc ions in the half-cell is 1 M and Copper ions in the half-cell is 0.1 M. The temperature of the system is 25°C. (Given: Standard Reduction Potentials - Zn²⁺ + 2e⁻ → Zn(s) = -0.76 V and Cu²⁺ + 2e⁻ → Cu(s) = +0.34 V)

asked Feb 3 in ElectroChemistry by jozzpfdeimmyapm (2.0k points)

Categories