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1
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How does the change in pH affect the rate of reaction between hydrogen peroxide and iodide ion?
asked
4 days
ago
in
Chemical kinetics
0
votes
1
answer
25
views
What is the most suitable polymer electrolyte material for use in a lithium-ion battery and why?
asked
4 days
ago
in
Polymer Chemistry
0
votes
1
answer
17
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What is the enthalpy change of ionization for magnesium (Mg) given that it requires 738 kJ/mol to remove the first electron and 1450 kJ/mol to remove the second electron from a Mg atom?
asked
6 days
ago
in
ThermoChemistry
0
votes
1
answer
30
views
What is the mechanism behind the corrosion of iron and how does passivation effect its corrosion rate?
asked
6 days
ago
in
Surface Chemistry
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1
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43
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How can the performance of polymer-based membranes for water treatment be improved by modifying the structure and properties of the polymer?
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Feb 10
in
Polymer Chemistry
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1
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32
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How can chemistry students effectively access and stay informed about current research in their field, despite limited exposure within their coursework and programs?
asked
Feb 4
in
Chemical education
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1
answer
28
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How can chemistry educators provide effective support for students with learning disabilities to ensure their success and understanding of the subject material?
asked
Feb 4
in
Chemical education
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votes
1
answer
61
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Calculate the standard enthalpy change of formation for ethanoic acid, given the following standard enthalpy of combustion data:- Ethanol: -1367 kJ/mol- Carbon dioxide: -393.5 kJ/mol- Water: -285.8 kJ/molThe chemical equation for the formation of ethanoic acid is:2C2H5OH + 2O2 → 2CH3COOH + 2H2O
asked
Feb 3
in
Chemical thermodynamics
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1
answer
62
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Calculate the heat of combustion for propane gas, C3H8(g), if 12.5 grams of propane are completely burned in excess oxygen gas and the products of reaction are cooled from 700°C to 25°C. The heat capacities of the reactants and products are as follows: C3H8(g): cp = 44.10 J/K O2(g): cp = 29.38 J/K CO2(g): cp = 36.8 J/K H2O(g): cp = 33.6 J/K Assume that the heat capacities of the products and reactants are constant over the temperature range of the reaction and that the heat lost to the surroundings is negligible.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
47
views
Calculate the enthalpy change of ionization for magnesium given the following data: Mg(g) → Mg+(g) + e- ΔH1 = +738 kJ/mol Mg+(g) → Mg2+(g) + e- ΔH2 = +1451 kJ/mol
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
54
views
Calculate the change in entropy when 1 mole of methane gas (CH4) is burned completely in oxygen gas (O2) at constant pressure and 298 K.
asked
Jan 23
in
Chemical thermodynamics
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1
answer
53
views
A bottle contains a mixture of nitrogen and oxygen gases. At a specific temperature and pressure, the nitrogen molecules move on an average velocity of 500 m/s and oxygen molecules move at 400 m/s. What is the partial pressure of nitrogen and oxygen in the mixture if the total pressure of the gas is 1 atm?
asked
Jan 22
in
Physical Chemistry
0
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1
answer
76
views
What is the systematic name of the following organic compound: CH3CH2CH(CH3)CH2CH3?
asked
Jan 21
in
Organic Chemistry
0
votes
1
answer
9
views
According to the social impact theory, what factors influence a person's susceptibility to social influence?
asked
Jan 20
in
Psychology
0
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1
answer
38
views
What is the difference between sensory memory, short-term memory, and long-term memory?
asked
Jan 20
in
Psychology
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1
answer
48
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Why is multicultural psychology important for understanding human diversity?
asked
Jan 20
in
Psychology
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1
answer
69
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What is the importance of interdependence theory in understanding relationships?
asked
Jan 15
in
Psychology
0
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1
answer
82
views
When does the just noticeable difference occur?
asked
Jan 15
in
Psychology
0
votes
1
answer
31
views
Who proposed the Transactional Model of Stress and Coping?
asked
Jan 15
in
Psychology
0
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1
answer
42
views
What is the difference between a stereotype and a schema?
asked
Jan 14
in
Psychology
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