Recent activity by MarcelinoSir

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How can chemistry teachers emphasize practical applications of chemistry in the classroom to help students better understand the relevance of the subject in real-world scenarios? Provide specific examples of how practical applications can be incorporated into chemistry lessons.

answered 6 days ago in Chemical education

1 answer 27 views

Consider a container separated into two compartments by a barrier. One compartment has a gas at a pressure of 1 atm and the other compartment is empty. The barrier has a small hole in it, which allows the gas to diffuse from one compartment to another. If the rate of diffusion of the gas is 0.2 mL/min and the molar mass of the gas is 28g/mol, what is the mass of gas transferred through the hole in 5 hours?

answered Feb 3 in Physical Chemistry

1 answer 68 views

What is the pKa of acetic acid (CH3COOH) and how is it affected by the presence of an electron-withdrawing group on the adjacent carbon atom?

answered Jan 21 in Organic Chemistry

1 answer 8 views

Why do forensic psychologists study criminal behaviour?

asked Jan 17 in Psychology

1 answer 25 views

What are the strengths of the inductive approach?

asked Jan 16 in Psychology

1 answer 44 views

Compare the effectiveness of pharmacological and non-pharmacological treatments for ADHD.

asked Jan 16 in Psychology

1 answer 32 views

How does the cognitive dissonance theory explain attitude change?

answered Jan 15 in Psychology

1 answer 36 views

Where are the seeds in gymnosperms found?

asked Jan 8 in Science

1 answer 25 views

What term is used for the difference in the placement of an object from one time to another?

answered Jan 7 in Science

1 answer 14 views

Space telescopes avoid such problems completely since they orbit outside the what?

answered Dec 31, 2024 in Science

1 answer 46 views

Friction does negative work and removes some of the energy the person expends and converts it to which kind of energy?

answered Dec 30, 2024 in Science

1 answer 13 views

Dna replication, chromosome segregation, and the separation into two daughter cells are steps in what process?

answered Dec 30, 2024 in Science

1 answer 9 views

What equals the output power divided by the input power?

asked Dec 27, 2024 in Science

1 answer 61 views

What is the most effective color in interrupting the nighttime portion of the photoperiod?

answered Dec 27, 2024 in Science

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