Questions by WPOBernadine

0 votes

1 answer 29 views

How does the magnetic field affect the magnetization of ferromagnetic materials commonly used in data storage devices such as hard drives and magnetic tapes, and how can this understanding be applied to improve the efficiency and capacity of such devices?

asked Feb 20 in Materials Chemistry

0 votes

1 answer 28 views

What is the effect of varying concentration of reactants on the rate of a chemical reaction?

asked Feb 20 in Chemical kinetics

0 votes

1 answer 29 views

How does the concentration of microplastics in seawater affect the survival and growth of marine organisms, and what chemical processes are responsible for these impacts?

asked Feb 19 in Environmental Chemistry

0 votes

1 answer 34 views

How does the chemical structure and molecular weight of a polymer affect its susceptibility to UV degradation?

asked Feb 18 in Polymer Chemistry

0 votes

1 answer 65 views

How can the process parameters, such as temperature, feed ratio, and catalyst concentration, be optimized to achieve maximum polymer yield and quality in the production of polyethylene using the high-pressure polymerization method?

asked Feb 10 in Chemical engineering

0 votes

1 answer 42 views

How can molecular modeling be used to predict the properties of a new drug compound?

asked Feb 5 in Physical Chemistry

0 votes

1 answer 87 views

How does changing the pH affect the equilibrium position of an acid-base reaction between a weak acid and a strong base? Provide a brief explanation of the underlying principle and use an example to illustrate your answer.

asked Feb 3 in Chemical equilibrium

0 votes

1 answer 82 views

Calculate the enthalpy change for the hydrolysis of sucrose given the following information: Sucrose (C12H22O11) reacts with water to form glucose (C6H12O6) and fructose (C6H12O6). Delta H for the reaction is -190 kJ/mol. The enthalpy of formation for sucrose is -2227 kJ/mol, the enthalpy of formation for glucose is -1274 kJ/mol, and the enthalpy of formation for fructose is -1266 kJ/mol.

asked Jan 23 in ThermoChemistry

0 votes

1 answer 112 views

A chemistry student wants to determine the effect of adding a buffer solution on the equilibrium position of an acetic acid-sodium acetate reaction. The initial concentrations of acetic acid and sodium acetate are both 0.1 M and the pH of the solution is 4. Calculate the new concentrations of acetic acid, acetate ion, and hydrogen ion after adding a buffer solution containing 0.2 M acetic acid and 0.2 M sodium acetate. What is the new pH of the solution?

asked Jan 22 in Chemical equilibrium

0 votes

1 answer 134 views

What are some of the challenges of treating borderline personality disorder?

asked Jan 20 in Psychology

0 votes

1 answer 37 views

Who conducted the study on the prevalence of eating disorders in Australia?

asked Jan 20 in Psychology

0 votes

1 answer 99 views

How is dialectical behaviour therapy used to treat borderline personality disorder?

asked Jan 17 in Psychology

0 votes

1 answer 42 views

How does blindsight work?

asked Jan 17 in Psychology

0 votes

1 answer 32 views

What does achieving statistical significance indicate in correlational research?

asked Jan 17 in Psychology

+1 vote

1 answer 38 views

When assessing the usefulness of a theory in existential psychology, what factors should be considered?

asked Jan 16 in Psychology

0 votes

0 answers 102 views

Who developed the cognitive model of depression?

asked Jan 16 in Psychology

0 votes

1 answer 57 views

What is a cochlear implant?

asked Jan 14 in Psychology

0 votes

1 answer 47 views

Why do butterfly fish have fake eyespots?

asked Jan 8 in Science

0 votes

1 answer 16 views

Which type of substance is considered a proton donor in a reaction?

asked Jan 8 in Science

0 votes

1 answer 18 views

What is the liquid inside the central vacuole called?

asked Jan 7 in Science

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