Recent activity by JettaN008031

1 answer 32 views

How does the acidity level of acid mine drainage affect the solubility and toxicity of heavy metals present in contaminated water sources, and what are the best treatment methods to mitigate their impact on the environment?

asked 5 days ago in Environmental Chemistry

1 answer 30 views

What are the resonance structures of the molecule C6H5NO2 (nitrobenzene)?

asked Feb 13 in Chemical bonding

1 answer 42 views

What is the hybridization of the nitrogen atom in ammonia (NH3) and what is the justification for the hybridization state?

asked Feb 13 in Inorganic Chemistry

1 answer 41 views

What is the heat of hydration of magnesium sulfate, MgSO4, when 45 grams of the anhydrous salt is dissolved in 250 mL of water? The molar heat of hydration of MgSO4 is -138.5 kJ/mol.

asked Feb 13 in ThermoChemistry

1 answer 42 views

What are the photochemical properties of commonly used photovoltaic materials, and how can they be optimized to increase their efficiency at converting light into electrical energy?

answered Feb 12 in PhotoChemistry

1 answer 45 views

Calculate the standard enthalpy change for the reaction between 2.00 moles of liquid ethanol (C2H5OH) and 3.50 moles of gaseous oxygen (O2) to form carbon dioxide (CO2) gas and liquid water (H2O) at 25°C and standard pressure. The balanced chemical equation for the reaction is C2H5OH + 3O2 → 2CO2 + 3H2O. (The molar enthalpies of formation for C2H5OH, CO2, and H2O are -277.6 kJ/mol, -393.5 kJ/mol, and -285.8 kJ/mol, respectively.)

asked Feb 3 in Chemical thermodynamics

1 answer 73 views

What is the concentration of chloride ions in a 0.10 M solution of hydrochloric acid (HCl) using potentiometry?

answered Jan 30 in Analytical Chemistry

1 answer 11 views

According to Authentic Leadership Theory, what are the three critical components of authentic leadership?

answered Jan 17 in Psychology

1 answer 34 views

When treating depression, what is cognitive-behavioural therapy?

asked Jan 17 in Psychology

1 answer 12 views

What gas can be generated by reacting sodium bromide with elemental chlorine?

asked Jan 6 in Science

1 answer 40 views

The muscles of the anterior neck assist in deglutition also known as what?

asked Jan 2 in Science

1 answer 34 views

Major exchange pools of carbon include organisms and what else?

asked Dec 31, 2024 in Science

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