Questions by JaneenBarrie

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1 answer 96 views

What are the optimal composition and thermal treatment conditions for a titanium alloy that exhibits high strength, low density, and excellent corrosion resistance for use in aerospace applications?

asked Feb 21 in Materials Chemistry

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1 answer 94 views

How does the inhibition of the enzyme pyruvate kinase affect the metabolic pathway of glycolysis and what are the regulatory mechanisms involved?

asked Feb 20 in BioChemistry

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1 answer 91 views

What is the structural difference between the heterocyclic compounds pyridine and pyrrole, and how does it affect their physical and chemical properties?

asked Feb 14 in Organic Chemistry

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1 answer 102 views

What are the hybrid orbitals present in the molecule of formaldehyde (CH2O)?

asked Feb 13 in Chemical bonding

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1 answer 143 views

Design a distillation column that can effectively separate a mixture of 75% ethanol and 25% water with a feed rate of 1000 kg/hr. Your column should produce a distillate with a composition of at least 95% ethanol and a bottom product with no more than 5% ethanol. Assume the feed mixture enters the column at its boiling point and you have access to a cooling water supply at 20°C for the condenser. Provide a detailed design and justification of your column's operating conditions including temperatures, pressures, and flow rates.

asked Feb 3 in Chemical engineering

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1 answer 205 views

How does changing the molecular weight of a polymer affect its melt viscosity and how can this be quantitatively measured using rheological measurements such as shear rate and shear stress?

asked Feb 3 in Polymer Chemistry

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1 answer 99 views

Calculate the enthalpy of formation of water (H2O) given the enthalpies of formation of hydrogen gas (H2) and oxygen gas (O2) are -286 kJ/mol and 0 kJ/mol, respectively.

asked Jan 23 in ThermoChemistry

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1 answer 94 views

Calculate the enthalpy change for the hydrolysis of 0.025 moles of ethyl acetate (C4H8O2) in the presence of excess water, given that the enthalpy of reaction is -56.0 kJ/mol.

asked Jan 23 in ThermoChemistry

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1 answer 174 views

A certain metal oxide has an enthalpy of formation of -589.3 kJ/mol. When a 5.60 g sample of this oxide is reduced with excess hydrogen gas, the enthalpy change for the reaction is found to be -129.3 kJ/mol. Calculate the enthalpy of reduction per mole of this oxide.

asked Jan 22 in ThermoChemistry

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1 answer 32 views

How might authoritative parenting impact child development?

asked Jan 17 in Psychology

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1 answer 138 views

According to schema theory, what is a schema?

asked Jan 16 in Psychology

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1 answer 85 views

How can informational social influence be evaluated?

asked Jan 16 in Psychology

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1 answer 67 views

What is Bandura's self-efficacy theory?

asked Jan 16 in Psychology

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0 answers 151 views

Who developed the concept of Resilience?

asked Jan 15 in Psychology

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1 answer 131 views

What is the task-based model of coping with bereavement?

asked Jan 14 in Psychology

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1 answer 137 views

What is the difference between avoidant coping and disengagement coping?

asked Jan 14 in Psychology

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1 answer 61 views

Where does the earth gets its energy from?

asked Jan 8 in Science

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1 answer 70 views

What regulates the cell cycle only when they are tightly bound to cdks?

asked Jan 7 in Science

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1 answer 120 views

What is the color of mercury(ii) oxide?

asked Jan 6 in Science

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1 answer 139 views

What does power imply is happening to energy?

asked Jan 6 in Science

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