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0
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1
answer
73
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What is the activation energy in Joules for a chemical reaction that has a rate constant of 2.7 x 10^-3 s^-1 and a temperature of 298 K? The activation energy can be calculated using the Arrhenius equation.
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
77
views
What is the activation energy of the following reaction at room temperature?2NO(g) + Cl2(g) → 2NOCl(g)The rate constant of the reaction is 0.00313 L mol^-1 s^-1 at 25°C and increases to 0.05012 L mol^-1 s^-1 at 35°C.
asked
Mar 1
in
Chemical kinetics
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votes
1
answer
58
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What is the activation energy of a reaction if its rate constant increases by a factor of 4 when the temperature is increased from 25°C to 50°C?
asked
Mar 1
in
Chemical kinetics
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1
answer
76
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What is the activation energy of the reaction between hydrochloric acid and zinc, given that the reaction rate constant at 25°C is 3.42 x 10^-3 s^-1 and the temperature coefficient is 1.99?
asked
Mar 1
in
Chemical reactions
0
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1
answer
66
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What is the activation energy required for the chemical reaction between hydrogen gas and oxygen gas to form water? Given that the rate constant of the reaction is 5.62 x 10^-4 s^-1 at 298 K and the reaction has an overall order of 2.
asked
Mar 1
in
Chemical reactions
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votes
1
answer
66
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What is the activation energy required for the oxidation of tin in a solution of hydrochloric acid, given that the standard electrode potential for the Sn2+/Sn couple is -0.14 V and the rate constant for the reaction is 5.6 x 10^-3 molL^-1s^-1 at 25°C?
asked
Mar 1
in
ElectroChemistry
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1
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80
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What is the activation energy for the electrochemical reaction occurring between zinc and copper ions, given that the reaction has a rate constant of 1.5 x 10^-4 mol L^-1 s^-1 at 25°C and a rate constant of 6.2 x 10^-3 mol L^-1 s^-1 at 40°C?
asked
Mar 1
in
ElectroChemistry
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1
answer
71
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What is the activation energy for the electrochemical reaction between copper and zinc ions using a copper-zinc galvanic cell at 25°C and a potential difference of 1.8V?
asked
Mar 1
in
ElectroChemistry
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votes
1
answer
74
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What is the activation energy required for the decomposition of hydrogen peroxide to water and oxygen at 25°C, given the rate constant of the reaction is 0.005 s⁻¹?
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
76
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What is the activation energy for a chemical reaction that has a rate constant of 2.5 × 10^-3 s^-1 at a temperature of 298 K, when the frequency factor is 5 × 10^13 s^-1?
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
75
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Sure, here's a problem for a chemistry student to solve:Calculate the acid dissociation constant (Ka) of a 0.1 M solution of acetic acid, given its pH is 3.7. The pKa value of acetic acid is 4.74.
asked
Mar 1
in
Chemical reactions
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votes
1
answer
74
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What are the specific skills and practical experiences that chemistry students need to acquire during their undergraduate studies, in order to be adequately prepared for chemistry-related careers in industry or academia?
asked
Mar 1
in
Chemical education
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votes
1
answer
67
views
How can the synthesis reaction between magnesium and oxygen be balanced using the least whole number coefficients?
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
79
views
What is the balanced redox reaction between potassium permanganate and oxalic acid in acidic medium?
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
70
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What is the balanced redox reaction for the reaction between permanganate ion (MnO4-) and hydrogen peroxide (H2O2) in an acidic solution?
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
95
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What is the balanced redox reaction when copper metal reacts with silver nitrate solution to form copper (II) nitrate and silver metal?
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
75
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What is the balanced redox equation for the reaction of potassium permanganate with iron(II) sulfate in acidic solution?
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
71
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What is the balanced redox equation for the reaction between potassium dichromate (K2Cr2O7) and ethanol (C2H5OH) in acidic medium? Calculate the oxidation number of chromium in the dichromate ion before and after the reaction.
asked
Mar 1
in
Organic Chemistry
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1
answer
78
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What is the balanced redox equation for the reaction between iron(II) chloride and potassium permanganate in acidic solution?
asked
Mar 1
in
Chemical reactions
0
votes
1
answer
77
views
What is the balanced half-reaction for the oxidation of ethanol (C2H5OH) to acetic acid (CH3COOH) and what is the oxidation state change of carbon in this reaction?
asked
Mar 1
in
Organic Chemistry
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