Recent activity by CynthiaOddo

1 answer 4 views

How can chemistry students be exposed to current research in their field, particularly in topics or subfields that may not be covered in their coursework or textbooks?

asked 23 hours ago in Chemical education

1 answer 36 views

Calculate the standard cell potential (E°) for the following electrochemical cell:Zn(s) | Zn2+(aq, 0.100M) || Cr3+(aq, 0.050M) | Cr(s)Given: E°cell (Zn2+/Zn) = -0.76 VE°cell (Cr3+/Cr) = -0.74 V

asked 2 days ago in Physical Chemistry

1 answer 29 views

Calculate the monolayer capacity and specific surface area of a sample of silica gel using BET theory. The sample was found to have a weight of 2.56 g and a total surface area of 260 m²/g. The gas used for adsorption was nitrogen at a temperature of 77 K and a pressure range of 0.01-0.3 P/P₀. The plot of (P/P₀)/(V₀/V) versus P/P₀ generated a straight line with a slope of 4.2×10⁻³.

answered 2 days ago in Surface Chemistry

1 answer 40 views

Calculate the heat of hydration for the reaction between anhydrous copper sulfate (CuSO4) and water (H2O), given that the mass of anhydrous copper sulfate used is 10 g and the temperature of the solution increases from 25°C to 35°C. The molar heat of hydration for copper sulfate pentahydrate (CuSO4.5H2O) is -90.1 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 41 views

Calculate the amount of heat absorbed when 32 grams of ice at -10°C melts into water and then further heated to 35°C. (Given: Enthalpy of fusion of ice = 6.01 kJ/mol and specific heat of water = 4.18 J/g°C)

answered Jan 23 in ThermoChemistry

1 answer 45 views

A student wants to find the enthalpy change of a chemical reaction using Hess's Law, but the only information provided is the enthalpy change of two other reactions. Design an experiment to determine the enthalpy change of the unknown reaction using the given data and Hess's Law.

asked Jan 22 in Chemical reactions

1 answer 29 views

What is intelligence theory?

answered Jan 17 in Psychology

1 answer 21 views

What is the role of the amygdala in emotion?

asked Jan 15 in Psychology

1 answer 23 views

Where does the Cognitive Experiential Self-Theory Model of Addiction suggest addiction comes from?

answered Jan 15 in Psychology

1 answer 45 views

When does the self-enhancement theory suggest people seek self-esteem?

asked Jan 15 in Psychology

1 answer 35 views

What is the role of social support in end-of-life care?

asked Jan 14 in Psychology

1 answer 8 views

Which germ layers are essential for animal embryos to grow and develop into a body?

asked Jan 8 in Science

1 answer 61 views

What kind of surface temperature is found on venus?

answered Jan 7 in Science

1 answer 17 views

What color does red litmus paper turn in the presence of a base?

answered Jan 6 in Science

1 answer 8 views

After fluid collects in nephron tubules in the kidney, where does it move to?

answered Dec 30, 2024 in Science

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