Recent questions in Chemistry

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1 answer 164 views

Calculate the overpotential of a lead electrode in contact with a solution containing [Pb2+] = 0.001 M when the temperature is 298 K. Given that the standard potential of the Pb2+ / Pb electrode is -0.13 V and the exchange current density is 0.015 A/m2.

asked Feb 3 in ElectroChemistry by CletaF793120 (2.8k points)

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1 answer 96 views

Calculate the overpotential for the reduction reaction of Ag+ to Ag on a silver electrode at 25°C with a current density of 0.5 A/cm2. The standard reduction potential of Ag+ to Ag is 0.799 V vs. the standard hydrogen electrode. The activation energy for this reaction is 65.0 kJ/mol, the transfer coefficient is 0.4 and the reaction order is 1.5.

asked Feb 3 in ElectroChemistry by MerissaGxv8 (1.7k points)

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1 answer 79 views

Calculate the overpotential (in millivolts) for the reduction of Cu2+ to Cu on a copper electrode at 25°C, given that the standard reduction potential of Cu2+ to Cu is +0.34 V and the actual voltage is 0.32 V.

asked Feb 3 in ElectroChemistry by LannyNewell (1.8k points)

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1 answer 116 views

Calculate the number of electrons transferred when a solution containing 0.25 M Ni(NO3)2 is electrolyzed using a current of 0.50 A for 2.0 hours. The reaction taking place is Ni2+ (aq) + 2e- --> Ni (s).

asked Feb 3 in ElectroChemistry by CooperPallad (1.7k points)

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1 answer 118 views

Calculate the number of electrons transferred when 1 mole of magnesium is oxidized to form magnesium ions in an electrochemical cell. The balanced half-reaction is Mg → Mg2+ + 2e-.

asked Feb 3 in ElectroChemistry by DoloresLocke (1.7k points)

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1 answer 148 views

Calculate the number of electrons transferred in the following reaction: Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s) Hint: In order to balance the equation, you'll need to add electrons to one side of the reaction.

asked Feb 3 in ElectroChemistry by TrevorE07525 (2.2k points)

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1 answer 123 views

Calculate the number of electrons transferred in the electrochemical reaction when a solution of silver nitrate is added to a copper electrode and a salt bridge is used to complete the circuit.

asked Feb 3 in ElectroChemistry by Linnea35385 (2.0k points)

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1 answer 135 views

Calculate the number of electrons transferred during the following redox reaction: Cu(s) + 2Ag+ --> Cu2+ + 2Ag(s)

asked Feb 3 in ElectroChemistry by XLNDorris808 (1.7k points)

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1 answer 120 views

Calculate the number of electrons transferred during the following electrochemical reaction: Mg(s) + 2H+(aq) → Mg2+(aq) + H2(g)

asked Feb 3 in ElectroChemistry by MurrayDrew60 (1.7k points)

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1 answer 97 views

Calculate the new equilibrium concentration of a complex ion formed between Cu2+ and NH3(aq) at 25°C, if the initial concentration of Cu2+ is 0.10 M and NH3(aq) is 0.05 M, and the temperature is increased to 35°C. The equilibrium constant (Kc) for this reaction is 1.6×107.

asked Feb 3 in Chemical equilibrium by JanF74978399 (1.6k points)

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1 answer 120 views

Calculate the monolayer capacity and specific surface area of a sample of silica gel using BET theory. The sample was found to have a weight of 2.56 g and a total surface area of 260 m²/g. The gas used for adsorption was nitrogen at a temperature of 77 K and a pressure range of 0.01-0.3 P/P₀. The plot of (P/P₀)/(V₀/V) versus P/P₀ generated a straight line with a slope of 4.2×10⁻³.

asked Feb 3 in Surface Chemistry by OrenDarwin6 (1.9k points)

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1 answer 141 views

What is the role of chaperones in protein folding and how do they prevent protein aggregation?

asked Feb 3 in BioChemistry by Ezra52525444 (2.0k points)

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1 answer 87 views

What is the role of chaperones in protein folding, and how do they assist in the correct folding of proteins?

asked Feb 3 in BioChemistry by ShelaSpriggs (2.0k points)

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1 answer 169 views

How do chaperones assist in protein folding and prevent misfolding? What is the mechanism behind their action in facilitating proper folding?

asked Feb 3 in BioChemistry by NickEverett (1.6k points)

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1 answer 179 views

What is the role of chaperone proteins in the folding process of newly synthesized proteins and how do they assist in preventing misfolding or aggregation?

asked Feb 3 in BioChemistry by Alexis87J090 (1.6k points)

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1 answer 147 views

How do chaperone proteins aid in the folding process of newly synthesized polypeptides during protein synthesis?

asked Feb 3 in BioChemistry by LannyNewell (1.8k points)

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1 answer 193 views

How does the presence of chaperone proteins affect the folding of newly synthesized proteins?

asked Feb 3 in BioChemistry by FerminClatte (1.8k points)

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1 answer 122 views

How do chaperone proteins facilitate proper folding of newly synthesized polypeptide chains during protein synthesis? Include the role of ATP in the folding process in your answer.

asked Feb 3 in BioChemistry by SteveAdamson (1.7k points)

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1 answer 123 views

How do chaperone proteins facilitate the correct folding of newly synthesized proteins in the cell?

asked Feb 3 in BioChemistry by CelsaTroiano (1.6k points)

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1 answer 119 views

How do chaperone proteins assist in the folding of newly synthesized proteins, and what are the consequences of improper protein folding?

asked Feb 3 in BioChemistry by TiaraFitzgib (2.1k points)

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