Recent activity by Dixie5711384

1 answer 27 views

How can magnetic resonance spectroscopy be used to determine the purity of a chemical compound? Develop a protocol for using NMR spectroscopy to assess the purity of a sample of 2-butanone.

asked 9 hours ago in Physical Chemistry

1 answer 40 views

Given the chemical equation: N2 + 3H2 <-> 2NH3 and an initial concentration of N2 as 0.1M, H2 as 0.2M, and NH3 as 0. Calculate the equilibrium concentrations of each component at 298K if the reaction is exothermic and the pressure is increased. (Hint: Use Le Chatelier's principle to determine the direction of the shift and then use an ICE table to calculate the concentrations at equilibrium)

answered 1 day ago in Chemical reactions

1 answer 6 views

Consider the reaction A + B ⇌ C + D, which has an equilibrium constant of 2.0 x 10^-3 at a given temperature. Initially, 0.10 mol of A and 0.20 mol of B are placed in a flask. Calculate the equilibrium concentrations of all species in the flask.

answered 1 day ago in Chemical equilibrium

1 answer 28 views

Can you identify the differences in the photochemical properties of the enantiomers of a chiral molecule and explain how this affects their behavior in a photochemical reaction?

answered 1 day ago in PhotoChemistry

1 answer 63 views

According to Asch's conformity experiment, what was the percentage of participants who conformed to the incorrect answer given by the group?

asked Jan 17 in Psychology

1 answer 7 views

What is a false alarm in signal detection theory?

asked Jan 17 in Psychology

1 answer 17 views

Why is the cognitive-behavioural theory criticised?

answered Jan 16 in Psychology

1 answer 7 views

According to the affordances theory, how does our perception of objects and environments influence our actions?

asked Jan 15 in Psychology

1 answer 21 views

What evidence supports the modularity approach?

asked Jan 13 in Psychology

1 answer 43 views

Which pathway carries somatosensory information from the face, head, mouth, and nasal cavity?

asked Jan 8 in Science

1 answer 22 views

What tool do scientist's use to show the evolutionary pathways and connections among organisms?

answered Jan 8 in Science

1 answer 43 views

What broad group of living things serves as the major producers in terrestrial biomes?

asked Jan 6 in Science

1 answer 57 views

The first period of the paleozoic era was called what?

asked Jan 2 in Science

1 answer 29 views

The crocodilia order, which includes crocodiles, alligators, caimans, and gharils, is part of what class of animals?

answered Dec 31, 2024 in Science

1 answer 8 views

The body contains how many types of muscle tissue?

answered Dec 27, 2024 in Science

1 answer 19 views

Vertebrates also require relatively large quantities of calcium and phosphorus for building and maintaining what?

asked Dec 27, 2024 in Science

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