Questions by MercedesLang

0 votes

1 answer 79 views

What is the primary structure of proteins and how does it affect their biological function?

asked Feb 22 in Organic Chemistry

0 votes

1 answer 73 views

What is the reaction mechanism for the preparation of 2,4-dinitrophenylhydrazine from hydrazine and 2,4-dinitrochlorobenzene?

asked Feb 22 in Chemical synthesis

0 votes

1 answer 85 views

What is the effect of temperature on the critical micelle concentration (CMC) of a surfactant and how does it relate to the physical properties of the micelles formed?

asked Feb 20 in Surface Chemistry

0 votes

1 answer 87 views

What is the net ATP production from the complete oxidation of one molecule of glucose in the citric acid cycle and oxidative phosphorylation?

asked Feb 18 in BioChemistry

0 votes

1 answer 77 views

How does the addition of carbon nanotubes (CNTs) as a reinforcement material affect the mechanical properties of polymer-based composites used in aerospace applications?

asked Feb 17 in Polymer Chemistry

0 votes

1 answer 95 views

How can we reliably predict the color of inorganic compounds based on their molecular structure and electronic transitions?

asked Feb 14 in Inorganic Chemistry

0 votes

1 answer 153 views

How does increasing the pressure affect the equilibrium position of the reaction N2(g) + 3H2(g) ⇌ 2NH3(g)?

asked Feb 13 in Chemical equilibrium

0 votes

1 answer 88 views

How can the alignment of liquid crystal molecules be effectually manipulated to increase the viewing angle and contrast of displays without impacting their energy efficiency?

asked Feb 6 in Materials Chemistry

0 votes

1 answer 194 views

What is the effect of changing the concentration of ligands on the formation of a complex ion of copper sulfate? Calculate the concentration of the complex ion [Cu(NH3)4(H2O)]2+ when 50 mL of a 0.1 M solution of ammonia is added to 50 mL of a 0.1 M solution of copper sulfate. The formation constant for the complex ion is 1.1 x 10^12.

asked Feb 3 in Chemical equilibrium

0 votes

1 answer 133 views

How do changes in reactant concentration affect the rate and efficiency of a chemical reaction, and how can this knowledge be applied to optimize reaction conditions in industry?

asked Jan 31 in Chemical kinetics

0 votes

1 answer 136 views

Identify two complex chemical concepts that you find difficult to understand, and describe a strategy that you use to help comprehend and master the concepts.

asked Jan 31 in Chemical education

0 votes

1 answer 87 views

Calculate the enthalpy change of dissolving 10 grams of NaCl in 100 mL of water, assuming the resultant solution has a density of 1.0 g/mL and assuming that the heat evolved is absorbed by the water. Given: the enthalpy of hydration of NaCl is -787 kJ/mol.

asked Jan 23 in ThermoChemistry

0 votes

1 answer 98 views

Calculate the enthalpy change for the reaction: 2H₂(g) + O₂(g) → 2H₂O(g) The enthalpy of formation of H₂O is -242 kJ/mol, and the enthalpy of formation of O₂ is 0 kJ/mol.

asked Jan 23 in ThermoChemistry

0 votes

1 answer 94 views

Assuming that the concentration of Cu2+ ions in a solution is 0.25 M, the concentration of Ag+ ions in another solution is 0.50 M, and the standard reduction potential of Cu2+(aq) + 2e- → Cu(s) is +0.34 V and that of Ag+(aq) + e- → Ag(s) is +0.80 V, calculate the current density when the two solutions are separated by a salt bridge and connected by a wire.

asked Jan 22 in ElectroChemistry

0 votes

1 answer 142 views

A chemistry student wants to prepare a solution that contains 25% ethanol (by volume) and the rest is water. The enthalpy of mixing for ethanol and water is -21.2 kJ/mol. How much heat is evolved when the student makes 500 mL of the solution?

asked Jan 22 in ThermoChemistry

0 votes

1 answer 86 views

Why was the term 'crip' reclaimed by the disability rights movement?

asked Jan 20 in Psychology

0 votes

1 answer 114 views

Where was the Milgram Experiment conducted?

asked Jan 20 in Psychology

0 votes

1 answer 159 views

What is a meta-analysis?

asked Jan 20 in Psychology

0 votes

1 answer 208 views

How does inferential statistics help us draw conclusions about populations?

asked Jan 17 in Psychology

0 votes

1 answer 76 views

What is the role of context in perceptual illusions?

asked Jan 15 in Psychology

Categories