Recent activity by Sharyl671254

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 = ?

asked 1 day ago in Chemical thermodynamics

1 answer 52 views

How can Raman spectroscopy be used to identify the presence of a specific organic compound in a mixture, and what are the limitations of this technique in terms of sensitivity and specificity?

answered Jan 29 in Analytical Chemistry

1 answer 51 views

Calculate the lattice energy of potassium oxide (K2O) given that the ionic radii of K+ and O2- are 152 pm and 140 pm respectively, and the lattice enthalpy of formation of K2O is -3803 kJ/mol.

asked Jan 23 in Inorganic Chemistry

1 answer 43 views

Calculate the equilibrium constant for the following electrochemical cell reaction at 25°C:Cu(s) + 2 Ag+(aq) --> Cu2+(aq) + 2 Ag(s)Given the standard reduction potentials are:Cu2+(aq) + 2 e- → Cu(s) E°red = +0.34 VAg+(aq) + 1 e- → Ag(s) E°red = +0.80 V

answered Jan 23 in ElectroChemistry

1 answer 56 views

What is the systematic name of the following organic compound? CH3CH2CH(Cl)CH(OH)CH3

asked Jan 21 in Organic Chemistry

1 answer 49 views

When might medications be used to treat PTSD?

answered Jan 20 in Psychology

1 answer 20 views

What is a sampling distribution?

asked Jan 17 in Psychology

1 answer 32 views

According to the information processing theory, why is attention important for learning?

answered Jan 16 in Psychology

1 answer 23 views

What is death anxiety?

answered Jan 15 in Psychology

1 answer 25 views

What is the theory of operant conditioning?

answered Jan 15 in Psychology

1 answer 21 views

What is the minimum depth in the aphotic zone?

answered Jan 7 in Science

1 answer 18 views

What is the accelerating pattern of increasing population size called?

asked Jan 6 in Science

1 answer 18 views

What are the two main components in a battery?

answered Jan 6 in Science

1 answer 22 views

What are the two best known baryons?

answered Jan 6 in Science

1 answer 20 views

Water molecules move about continuously due to what type of energy?

answered Jan 2 in Science

1 answer 9 views

Deserts and forests are examples of what type of biome?

answered Dec 30, 2024 in Science

1 answer 25 views

Covalent compounds form individual molecules rather than what?

asked Dec 30, 2024 in Science

1 answer 25 views

When a wave travels down a string, the string vibrates up and down at right angles to the wave's what?

asked Dec 28, 2024 in Science

1 answer 24 views

What compound gives tarnished copper it's green color?

answered Dec 28, 2024 in Science

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