Recent activity by CorneliusEli

1 answer 28 views

How can limited opportunities for hands-on experimentation in chemistry affect a student's overall understanding and appreciation of the subject?

answered 14 hours ago in Chemical education

1 answer 31 views

Calculate the pH of a solution with a concentration of 0.01 M HCl.

answered 2 days ago in Chemical reactions

1 answer 36 views

How does the mechanism of action differ between aspirin, ibuprofen, and acetaminophen in treating pain and inflammation, and what structural features of these drugs contribute to their efficacy?

answered 5 days ago in Medicinal Chemistry

1 answer 53 views

What is the rate constant for the hydrogen abstraction reaction between ethane and the hydroxyl radical (OH) in the gas phase at room temperature (298K)? Use quantum chemical calculations to determine the activation energy and frequency factor for this reaction.

answered 5 days ago in Computational Chemistry

1 answer 53 views

What is the effect of temperature on the phase transition of water from liquid to solid using Monte Carlo simulations?

answered 5 days ago in Computational Chemistry

1 answer 67 views

What is the concentration (in moles per liter) of a hydrochloric acid (HCl) solution if 25 mL of the solution reacts with 50 mL of a 0.1 M sodium hydroxide (NaOH) solution during a titration process?

answered 6 days ago in Analytical Chemistry

1 answer 34 views

A chemistry student needs to determine the percentage of calcium carbonate (CaCO3) present in a mixture of calcium carbonate and calcium phosphate. The student has the following information: A 1.00-gram sample of the mixture was dissolved and reacted with excess hydrochloric acid (HCl), producing 0.236 grams of carbon dioxide (CO2) gas. The balanced chemical equation for the reaction is: CaCO3 + 2HCl → CaCl2 + CO2 + H2O. The student also knows that the molecular weight of CaCO3 is 100.09 g/mol and that of Ca3(PO4)2 is 310.18 g/mol. What is the percentage of calcium carbonate in the mixture?

answered Jan 22 in Analytical Chemistry

1 answer 18 views

According to the self-perception theory, how do we infer our own attitudes and beliefs?

asked Jan 20 in Psychology

1 answer 54 views

What is the main criticism of the cognitive-behavioural model of pain management?

asked Jan 16 in Psychology

1 answer 19 views

Who proposed the framing effect?

asked Jan 16 in Psychology

1 answer 31 views

What is the zone of proximal development theory?

answered Jan 15 in Psychology

1 answer 7 views

What is the difference between problem-focused coping and emotion-focused coping?

asked Jan 14 in Psychology

1 answer 23 views

What celestial bodies are classified by color and temperature, ranging from blue to red and hottest to coolest?

answered Jan 6 in Science

1 answer 23 views

What can sodium ions not pass through?

asked Jan 6 in Science

1 answer 63 views

Ocean acidification results from the ocean absorbing what gas from the atmosphere?

asked Dec 31, 2024 in Science

1 answer 29 views

How many valence electrons can be found in a carbon atom?

asked Dec 30, 2024 in Science

1 answer 28 views

Cranial nerves convey specific sensory information from the head and neck directly to what organ?

asked Dec 30, 2024 in Science

...