Recent activity by NealWooldrid

1 answer 24 views

How can computational methods in quantum chemistry be used to predict the catalytic activity and selectivity of a particular catalyst for a specific chemical reaction?

asked 12 hours ago in Quantum Chemistry

1 answer 24 views

Determine the heat of hydration, in kJ/mol, for the reaction between solid Calcium chloride (CaCl2) and water (H2O), given that 1 mole of CaCl2 dissolves to produce 3 moles of ions and releases -82.8 kJ of heat in the process.

answered 1 day ago in ThermoChemistry

1 answer 32 views

Calculate the standard enthalpy of formation of methanol, CH3OH (l), given that the standard enthalpy of combustion of methanol is -726.4 kJ/mol and the standard enthalpy of formation of carbon dioxide and water are -393.5 kJ/mol and -285.8 kJ/mol, respectively.

answered 2 days ago in ThermoChemistry

1 answer 50 views

How can the lack of representation in the chemistry field be addressed to encourage greater diversity and inclusivity among chemistry professionals?

answered 5 days ago in Chemical education

1 answer 52 views

What is the amount (in moles) of calcium carbonate in a 7.25 g sample of limestone if the gravimetric analysis found that the sample contained 65.2% calcium carbonate?

asked 6 days ago in Analytical Chemistry

1 answer 49 views

How can X-ray fluorescence spectroscopy be used to identify the presence of specific elements in a sample, and what factors affect the accuracy and precision of this analytical technique?

answered 6 days ago in Analytical Chemistry

1 answer 55 views

Calculate the enthalpy change involved in the precipitation reaction between 50ml of 0.1 M lead nitrate solution and 50ml of 0.1 M sodium chloride solution at a constant temperature of 25°C. The balanced chemical equation for the reaction is Pb(NO3)2 + 2NaCl → PbCl2 + 2NaNO3. Standard enthalpies of formation for Pb(NO3)2, NaCl, PbCl2, and NaNO3 are -460.56 kJ/mol, -407.33 kJ/mol, -359.57 kJ/mol, and -467.93 kJ/mol respectively.

answered Jan 23 in ThermoChemistry

1 answer 45 views

How does nicotine affect the brain?

answered Jan 20 in Psychology

1 answer 42 views

According to Beck's cognitive model, what is the cause of depression?

asked Jan 16 in Psychology

1 answer 37 views

How does metapsychology relate to psychoanalysis?

answered Jan 16 in Psychology

1 answer 44 views

What is narrative analysis?

asked Jan 16 in Psychology

1 answer 18 views

Please compare the embodied cognition theory and the enactivism theory.

asked Jan 15 in Psychology

1 answer 17 views

What is the self-concept?

answered Jan 14 in Psychology

1 answer 41 views

What is the impact of anxiety on daily functioning?

asked Jan 14 in Psychology

1 answer 22 views

Which lymphoid organ is situated in the upper chest?

asked Jan 8 in Science

1 answer 25 views

What waves do radio and television use?

asked Jan 8 in Science

1 answer 42 views

What do tadpoles change into?

answered Jan 6 in Science

1 answer 31 views

What contains more calcium than any other organ?

asked Jan 6 in Science

1 answer 30 views

What supports life, and is also needed for the water cycle and weather?

answered Jan 2 in Science

1 answer 20 views

Ions move through what to maintain electrical neutrality in the cell?

asked Dec 27, 2024 in Science

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