Questions by WallaceMaria

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1 answer 28 views

What is the optimal reaction conditions to maximize the yield of polyethylene in the synthesis of polyethylene from ethylene monomer?

asked Feb 21 in Chemical synthesis

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1 answer 29 views

What is the heat of sublimation for dry ice (solid carbon dioxide) if it requires 25.2 kJ of energy to sublime 1 mole of dry ice at its standard-state conditions?

asked Feb 20 in ThermoChemistry

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1 answer 67 views

How does magnetic resonance spectroscopy aid in the determination of the molecular structure and conformation of organic compounds?

asked Feb 13 in Physical Chemistry

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1 answer 30 views

How can the photochemical properties of fluorescent dyes be used to improve the efficiency of solar cells?

asked Feb 10 in PhotoChemistry

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1 answer 47 views

How can the boiling point of a substance be predicted based on its type and strength of intermolecular forces? Provide a specific example of two different substances and explain their difference in boiling points based on their intermolecular forces.

asked Feb 6 in Chemical bonding

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1 answer 34 views

How can chemistry education programs prioritize the inclusion and awareness of safety protocols in laboratory settings to ensure the well-being of students and prevent accidents and incidents in the future?

asked Feb 4 in Chemical education

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1 answer 71 views

Calculate the standard Gibbs free energy change for the electrochemical reaction of zinc and copper ions: Zn(s) + Cu2+(aq) → Cu(s) + Zn2+(aq)Given the following standard electrode potentials: E°(Cu2+(aq) + 2e- → Cu(s)) = 0.34 V E°(Zn2+(aq) + 2e- → Zn(s)) = -0.76 V Assume standard conditions (25°C and 1 atm pressure) and that the concentrations of the copper and zinc ions are both 1 mol/L.

asked Feb 3 in ElectroChemistry

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1 answer 87 views

How does changing the concentration of a catalyst affect the rate of the catalyzed reaction? Provide experimental data to support your answer.

asked Jan 31 in Physical Chemistry

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1 answer 119 views

A chemistry student is given an unknown compound and is required to identify its molecular structure using mass spectrometry. How can the student analyze the mass spectrum data to determine the compound's molecular weight and possible functional groups?

asked Jan 22 in Analytical Chemistry

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1 answer 47 views

When can children begin to take on others' perspectives?

asked Jan 17 in Psychology

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1 answer 39 views

What are the limitations of cognitive-behavioural theory in understanding human sexuality?

asked Jan 16 in Psychology

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1 answer 38 views

What are some limitations of using theoretical frameworks in qualitative research?

asked Jan 16 in Psychology

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1 answer 74 views

What is the dialectical behaviour therapy (DBT)?

asked Jan 15 in Psychology

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1 answer 134 views

How is the strengths perspective used in community psychology?

asked Jan 15 in Psychology

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1 answer 90 views

When was the Social Cognitive Theory introduced?

asked Jan 15 in Psychology

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1 answer 82 views

Why is chronic pain difficult to treat?

asked Jan 14 in Psychology

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1 answer 39 views

Why does ice wedging occur?

asked Jan 8 in Science

0 votes

1 answer 50 views

When volcanoes erupt, what from the mantle is released as carbon dioxide into the air?

asked Jan 8 in Science

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1 answer 18 views

What type of gas is used to fill glass tubes of lighted signs?

asked Jan 8 in Science

0 votes

1 answer 76 views

What term is used to describe the sequence of elementary steps that together comprise an entire chemical reaction?

asked Jan 8 in Science

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