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How does the shape and size of nanomaterials affect their catalytic activity in the oxidation of carbon monoxide?
asked
Feb 24
in
Materials Chemistry
0
votes
1
answer
79
views
What is the balanced chemical equation for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas, and what are the stoichiometric ratios of each reactant in the reaction?
asked
Feb 22
in
Chemical synthesis
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1
answer
73
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How does the polarity of the solvent affect the rate of a photochemical reaction between a specific chromophore and the solvent?
asked
Feb 22
in
PhotoChemistry
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1
answer
86
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What is the balanced chemical equation for the precipitation reaction between silver nitrate solution and sodium chloride solution, and how many moles of silver chloride can be produced from 2.5 grams of AgNO3 and an excess of NaCl?
asked
Feb 17
in
Chemical reactions
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votes
1
answer
101
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How do the properties of surfactants change with variations in their molecular structure and how can these properties be modified to enhance their efficiency in different applications?
asked
Feb 17
in
Surface Chemistry
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1
answer
86
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What is the effect of metal substitution on the UV-Vis absorption spectra of metalloporphyrins and metallophthalocyanines? Provide a detailed explanation based on the electronic structure of these compounds.
asked
Feb 13
in
Coordination Chemistry
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1
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112
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What is the difference between linkage isomerism and coordination isomerism in coordination compounds? How can we distinguish between these two types of isomers based on their structural and spectroscopic properties?
asked
Feb 13
in
Coordination Chemistry
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1
answer
88
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How can chemistry educational materials (such as textbooks, lab manuals, and lectures) be made more accessible for students with learning disabilities in order to improve their understanding and retention of chemical concepts?
asked
Feb 4
in
Chemical education
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1
answer
87
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Calculate the standard enthalpy of formation of water (H2O) given the following information: ΔHf° of H2(g) = 0 kJ/molΔHf° of O2(g) = 0 kJ/molΔHf° of H2O2(l) = -188.2 kJ/mol
asked
Feb 3
in
ThermoChemistry
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1
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109
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Calculate the standard enthalpy change for the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) using the following information:- The standard enthalpy of formation for HCl is -92.31 kJ/mol - The standard enthalpy of formation for NaOH is -469.11 kJ/mol The balanced equation for the reaction is:HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l)
asked
Feb 3
in
Chemical thermodynamics
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1
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114
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What are the key environmental regulations in place in your state/country, and how effective have they been in protecting the environment?
asked
Jan 31
in
Environmental Chemistry
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1
answer
136
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How does the detection limit of X-ray fluorescence spectroscopy change with varying concentrations of the element of interest in a sample?
asked
Jan 30
in
Analytical Chemistry
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1
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80
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How do you determine the amount of chlorine present in a water sample using coulometry?
asked
Jan 30
in
Analytical Chemistry
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1
answer
60
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How can the concentration of lead ions in a water sample be determined using square wave voltammetry?
asked
Jan 29
in
Analytical Chemistry
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1
answer
145
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A chemistry student is given an unknown compound and asked to identify it using mass spectrometry. The mass spectrum of the compound shows a molecular ion peak at m/z 150, a base peak at m/z 135, and a few smaller peaks at m/z 91, 77, and 65. What is the possible molecular formula of the unknown compound?
asked
Jan 22
in
Analytical Chemistry
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1
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61
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According to Kohlberg, what is the highest level of moral development?
asked
Jan 20
in
Psychology
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1
answer
43
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Why is social desirability bias a concern in research?
asked
Jan 20
in
Psychology
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0
answers
69
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Who developed the cognitive behaviour therapy?
asked
Jan 17
in
Psychology
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1
answer
146
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Who proposed the stress-diathesis model of pain?
asked
Jan 16
in
Psychology
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1
answer
109
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According to Joseph Wolpe's theory of systematic desensitisation, why is this technique useful in treating anxiety?
asked
Jan 15
in
Psychology
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