Questions by RoderickKyle

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1 answer 30 views

What is the optimal ratio of diisocyanate to polyol for the synthesis of polyurethane with optimal mechanical properties?

asked Feb 21 in Chemical synthesis

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1 answer 32 views

What is the overall reaction mechanism of an electrophilic addition reaction of HBr to propene? Draw the step-by-step mechanism and explain why this reaction follows Markovnikov's rule.

asked Feb 20 in Organic Chemistry

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1 answer 26 views

How does the concentration of photosensitizer affect the rate of a photochemical reaction?

asked Feb 18 in PhotoChemistry

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1 answer 37 views

How does the regulation of the citric acid cycle in the mitochondria contribute to the regulation of cellular metabolism?

asked Feb 18 in BioChemistry

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1 answer 27 views

What is the bond enthalpy of a carbon-hydrogen (C-H) bond in methane (CH4), given that the energy required to break a mole of C-H bonds in methane is 413 kJ/mol?

asked Feb 18 in Chemical bonding

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1 answer 39 views

How can we optimize the chemical structure of existing bronchodilator drugs to improve their efficacy and reduce their side effects for the treatment of respiratory diseases such as asthma and chronic obstructive pulmonary disease (COPD)?

asked Feb 14 in Medicinal Chemistry

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1 answer 63 views

How does human activity contribute to the depletion of ozone in the atmosphere and what measures can be taken to prevent further damage?

asked Feb 13 in Environmental Chemistry

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1 answer 47 views

How can the production process of polymers be optimized for better yield and higher quality?

asked Feb 10 in Chemical engineering

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1 answer 21 views

How can the mechanical and thermal properties of polymer-based composites be optimized for aerospace applications?

asked Feb 7 in Polymer Chemistry

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1 answer 41 views

How can the durability and adhesive properties of polymer-based coatings and paints be enhanced using different chemical strategies?

asked Feb 7 in Polymer Chemistry

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1 answer 26 views

How can chemistry educators provide adequate support for students with learning disabilities in the classroom to ensure their success in understanding and applying complex chemistry concepts?

asked Feb 4 in Chemical education

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1 answer 58 views

Calculate the entropy change (∆S) for the reaction between 2.0 moles of hydrogen gas (H2) and 1.0 mole of oxygen gas (O2) at constant pressure and a temperature of 298 K, given the standard molar entropy values for H2 and O2 to be 130.7 J/K•mol and 205.0 J/K•mol, respectively.

asked Jan 23 in ThermoChemistry

0 votes

1 answer 150 views

A solution containing 0.1 M acetic acid and 0.1 M sodium acetate has a pH of 4.5. If 0.02 moles of hydrochloric acid is added to the solution, what will be the pH of the solution after equilibrium is reached? (Given pKa of acetic acid = 4.76)

asked Jan 22 in Chemical equilibrium

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1 answer 88 views

A 0.25 mol/L solution of ethanoic acid (CH3COOH) is mixed with a 0.40 mol/L solution of sodium acetate (CH3COONa). The equilibrium constant for the reaction CH3COOH + NaCH3COO ⇌ CH3COONa + H2O is 1.8 x 10^-5. What is the concentration of CH3COONa at equilibrium?

asked Jan 22 in Chemical equilibrium

0 votes

1 answer 72 views

Why might traditional psychoanalysis take a long time?

asked Jan 20 in Psychology

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1 answer 65 views

What is the information social influence theory by Muzafer Sherif?

asked Jan 20 in Psychology

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1 answer 96 views

What is Spearman's g?

asked Jan 20 in Psychology

0 votes

1 answer 49 views

Where does the cognitive approach suggest that perception comes from?

asked Jan 20 in Psychology

0 votes

1 answer 48 views

Where does the sociocultural model suggest that behaviour is influenced by?

asked Jan 20 in Psychology

0 votes

1 answer 43 views

Who created the self-determination theory of motivation?

asked Jan 17 in Psychology

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