Questions by TrishaStanto

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1 answer 22 views

Given a sample of mesoporous silica with a surface area of 500 m²/g, an amount of physisorbed nitrogen of 4.2 µmol/g, and assuming a monolayer coverage of 16.2 µmol/m², calculate the BET surface area of the silica.

asked 1 day ago in Surface Chemistry

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1 answer 30 views

Design a polymerization reaction to produce a high-density polyethylene (HDPE) with a molecular weight of 1 million grams per mole using ethylene as the monomer and a Ziegler-Natta catalyst system. Calculate the theoretical yield of the reaction and explain the factors that may affect the percent yield.

asked 1 day ago in Organic Chemistry

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1 answer 60 views

What are the top three most commonly missed topics on a high school chemistry exam and how can a student adequately prepare for these topics?

asked 6 days ago in Chemical education

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1 answer 39 views

How did Skinner's 'Skinner box' experiment demonstrate operant conditioning?

asked Jan 20 in Psychology

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1 answer 21 views

What is the difference between a leader and a manager?

asked Jan 16 in Psychology

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1 answer 26 views

What is the preoperational stage?

asked Jan 14 in Psychology

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1 answer 29 views

What receives blood in the heart?

asked Jan 7 in Science

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1 answer 8 views

What body system allows humans to move?

asked Jan 6 in Science

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1 answer 32 views

Fluid-filled thylakoids are the site of glucose production in the second stage of what process?

asked Dec 30, 2024 in Science

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1 answer 28 views

Converging plates can be oceanic, continental, or one of each. if at least one is oceanic, it will subduct. a subducting plate creates what?

asked Dec 30, 2024 in Science

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1 answer 25 views

Fungi may form mutualistic relationships with plants, algae, cyanobacteria, and what?

asked Dec 26, 2024

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