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26
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What is the effect of increasing concentration on the conductivity of a solution of sodium chloride, magnesium sulfate, and potassium nitrate?
answered
Feb 19
in
Inorganic Chemistry
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31
views
What is the carbon footprint of a single household and how can it be decreased through sustainable practices in everyday life?
answered
Feb 18
in
Environmental Chemistry
0
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100
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What is the mechanism by which enzymes catalyze the hydrolysis of peptide bonds in proteins and what role do biomolecules such as amino acids, chaperones, and co-factors play in this process?
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Feb 13
in
Organic Chemistry
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142
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How to design a cost-effective, efficient and sustainable system for producing hydrogen fuel from renewable sources such as solar and wind energy, using chemical engineering principles and techniques?
answered
Feb 12
in
Chemical engineering
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38
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How can students perform chemistry experiments and gain practical knowledge in the absence of necessary laboratory equipment and facilities due to limited access?
answered
Feb 5
in
Chemical education
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151
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Determine the equilibrium constant (Kc) for the reaction 2SO2(g) + O2(g) ⇌ 2SO3(g), given that at a certain temperature, the initial concentrations of SO2, O2, and SO3 were 0.10 M, 0.20 M, and 0.05 M, respectively, and the reaction was allowed to reach equilibrium.
answered
Feb 4
in
Chemical thermodynamics
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91
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Design a distillation column that separates a mixture of benzene and toluene with a feed of 50 mol% benzene and 50 mol% toluene, into two product streams: one with a purity of 99% benzene and the other with a purity of 99% toluene. The total distillate flow rate should be 80% of the feed flow rate and the reflux ratio should be 1.5 times the minimum reflux ratio. Provide a complete design including the required stages, the reboiler duty, and the reflux flow rate.
answered
Feb 3
in
Chemical engineering
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96
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What functional groups are present in the given compound as shown in its infrared spectrum?
answered
Jan 30
in
Analytical Chemistry
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37
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Calculate the Gibbs free energy change at 298 K for the reaction of hydrogen gas (H2) and chlorine gas (Cl2) to form hydrogen chloride gas (2HCl), given the following thermodynamic data:∆H°f (HCl) = -92.31 kJ/mol∆H°f (H2) = 0 kJ/mol∆H°f (Cl2) = 0 kJ/mol∆S°f (HCl) = -181.6 J/(mol*K)∆S°f (H2) = 130.7 J/(mol*K)∆S°f (Cl2) = 223.1 J/(mol*K)Also, determine whether the reaction is spontaneous at 298 K and if it will shift towards products or reactants.
answered
Jan 23
in
Chemical thermodynamics
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77
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Calculate the enthalpy change for the combustion of methane gas (CH4) at standard conditions using the given relevant thermodynamic data:2H2(g) + O2(g) -> 2H2O(g); ΔH° = -483.7 kJ/molCH4(g) + 2O2(g) -> CO2(g) + 2H2O(g); ΔH° = ?
answered
Jan 23
in
Chemical thermodynamics
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115
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What is the balanced chemical equation for the oxidation of ethanol to ethanoic acid using potassium dichromate(VI) as the oxidizing agent under acidic conditions?
answered
Jan 21
in
Organic Chemistry
0
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93
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Where does the idea of 'existential crisis' come from?
answered
Jan 20
in
Psychology
0
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71
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Where was the first study on cognitive bias modification CBM conducted?
answered
Jan 20
in
Psychology
0
votes
39
views
What are the strengths of Psychodynamic Therapy?
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Jan 16
in
Psychology
0
votes
37
views
What is the main criticism of the biological approach?
answered
Jan 16
in
Psychology
0
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67
views
What is the Law of Similarity in Gestalt psychology?
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Jan 16
in
Psychology
0
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90
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What is the difference between indigenous and Western conceptions of mental health?
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Jan 16
in
Psychology
0
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157
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Where can Bandura's self-efficacy theory be applied in everyday life?
answered
Jan 16
in
Psychology
0
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81
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What is the focus of psychodynamic therapy?
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Jan 14
in
Psychology
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45
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What is Self-Evaluation Maintenance theory?
answered
Jan 13
in
Psychology
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