Questions by KathiFatnown

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1 answer 38 views

What is the optimal reaction temperature and catalyst concentration for the synthesis of polyacrylonitrile from acrylonitrile monomer using ammonium persulfate as the initiator?

asked Feb 21 in Chemical synthesis

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1 answer 36 views

What is the mechanism of the nucleophilic substitution reaction between 2-bromopropane and potassium hydroxide in ethanol as the solvent?

asked Feb 21 in Organic Chemistry

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1 answer 35 views

What is the Lewis structure for the molecule carbon dioxide (CO2)?

asked Feb 20 in Chemical bonding

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1 answer 45 views

How does the insulin signaling pathway regulate carbohydrate metabolism in liver cells, and what role do enzymes such as hexokinase and glycogen synthase play in this process?

asked Feb 20 in BioChemistry

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1 answer 70 views

What is the hybridization of the central carbon atom in the molecule of ethane (C2H6)?

asked Feb 13 in Chemical bonding

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1 answer 110 views

What is the effect of concentration changes of reactants on the reaction rate in a complex reaction mechanism?

asked Feb 13 in Chemical kinetics

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1 answer 75 views

What is the specific procedure for preparing 2,4,6-trinitrotoluene from toluene and nitric acid, including the necessary reagents, reaction conditions, and safety precautions to be taken throughout the process?

asked Feb 13 in Chemical synthesis

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1 answer 46 views

What are the intermolecular forces present in hexane?

asked Feb 13 in Chemical bonding

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1 answer 68 views

How can the properties of semiconductors be modified to enhance their efficiency in electronic devices?

asked Feb 10 in Materials Chemistry

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1 answer 87 views

How can chemistry students overcome limited opportunities for hands-on experimentation in order to better understand practical applications of chemical principles and theories?

asked Feb 5 in Chemical education

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1 answer 117 views

Design a treatment system for the removal of heavy metals from industrial wastewater using an ion exchange process for a chemical manufacturing plant operating in the city with strict regulations regarding the disposal of wastewater.

asked Feb 4 in Chemical engineering

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1 answer 78 views

How does changing the stoichiometry of reactants in a chemical reaction affect the rate of reaction, and how can we experimentally investigate this relationship?

asked Feb 3 in Chemical kinetics

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1 answer 130 views

Calculate the enthalpy of vaporization for water given the following information: The boiling point of water is 100°C and its specific heat capacity is 4.18 J/g°C. The density of water at its boiling point is 0.958 g/mL and the heat of fusion for water is 40.7 kJ/mol. The molar mass of water is 18.015 g/mol.

asked Jan 23 in ThermoChemistry

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1 answer 115 views

A chemistry student has mixed 0.1 mol of hydrochloric acid (HCl) with 0.2 mol of sodium hydroxide (NaOH). What is the pH of the resulting solution?

asked Jan 22 in Inorganic Chemistry

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1 answer 46 views

Who developed the theory of multiple intelligences?

asked Jan 17 in Psychology

+1 vote

1 answer 48 views

How did Michael Gazzaniga's research with split-brain patients inform our understanding of consciousness?

asked Jan 17 in Psychology

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1 answer 119 views

How do evolutionary psychologists explain human behaviour?

asked Jan 17 in Psychology

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1 answer 60 views

According to Seligman, when does learned helplessness occur?

asked Jan 15 in Psychology

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1 answer 73 views

What are the different types of memory?

asked Jan 15 in Psychology

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1 answer 50 views

What are the qualities of a good parent?

asked Jan 13 in Psychology

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