Recent activity by WaylonHebble

1 answer 29 views

Determine the standard enthalpy of formation for acetic acid (CH3COOH) using Hess's law and the following thermochemical equations:1) C(s) + O2(g) → CO2(g) ΔH = -394 kJ/mol2) 2H2(g) + O2(g) → 2H2O(l) ΔH = -572 kJ/mol3) C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) ΔH = -1234 kJ/mol4) CH3COOH(l) + O2(g) → CO2(g) + H2O(l) ΔH = ?

answered 1 day ago in Chemical thermodynamics

1 answer 39 views

How can the presence of arsenic in a sample be identified using X-ray fluorescence spectroscopy, and what is the concentration of arsenic in the sample?

asked Jan 29 in Analytical Chemistry

1 answer 48 views

Calculate the heat of hydration of CuSO4.5H2O given that the enthalpy change for the reaction CuSO4.5H2O(s) -> CuSO4(s) + 5H2O(l) is -90.6 kJ/mol. Assume that the specific heat of the hydrated salt is 4.2 J/g*K and the density of the solution is 1.05 g/mL.

answered Jan 23 in ThermoChemistry

1 answer 54 views

Calculate the enthalpy of reduction for the reaction: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)given that the standard enthalpy of formation of Fe2O3(s), CO(g), and CO2(g) are -824kJ/mol, -110.5kJ/mol, and -393.5kJ/mol respectively. Assume all reactants and products are in their standard states.

answered Jan 23 in ThermoChemistry

1 answer 24 views

What is the relationship between motivation and behaviour?

answered Jan 17 in Psychology

1 answer 34 views

What is the strength of Buhler's lifespan development theory?

asked Jan 16 in Psychology

1 answer 23 views

According to the trait theory of personality, what is the difference between introversion and extraversion?

asked Jan 15 in Psychology

1 answer 42 views

How does the behaviourist perspective explain language development?

answered Jan 15 in Psychology

1 answer 23 views

How does the Cognitive Dissonance Theory apply to AI content moderation?

asked Jan 15 in Psychology

1 answer 24 views

What is happening to the rate of the expansion of the universe?

asked Jan 6 in Science

1 answer 24 views

What is an organism that spreads bacteria or other pathogens?

answered Jan 6 in Science

1 answer 9 views

Do bacteria sexually reproduce?

answered Dec 30, 2024 in Science

1 answer 25 views

What do angiosperms produce?

asked Dec 28, 2024 in Science

1 answer 23 views

What decay produces helium nuclei?

answered Dec 28, 2024 in Science

1 answer 7 views

What is the key to the demographic transition?

asked Dec 27, 2024 in Science

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