Recent activity by LouieEmmons4

1 answer 45 views

Design a retrosynthetic pathway to synthesize ibuprofen starting from methylcyclohexane. Show all necessary reagents and the key steps involved in the synthesis.

asked 1 day ago in Organic Chemistry

1 answer 38 views

Design a distillation column to separate a mixture of ethanol and water using McCabe-Thiele Method. The feed contains 50 mol% ethanol and the distillate should have a purity of at least 95 mol% ethanol. The reflux ratio is 2.5 and the boil-up ratio is 1.5. The column must have 10 theoretical plates. Determine the number of trays above the feed and below the feed and the corresponding compositions of the distillate and bottoms.

answered 1 day ago in Chemical engineering

1 answer 17 views

Calculate the standard enthalpy change (∆H°) for the dissolution of 5 grams of table salt (NaCl) in water at 298 kelvin. The molar mass of NaCl is 58.44 g/mol and the heat capacity of the solution is 4.18 J/gK.

asked 2 days ago in Chemical thermodynamics

1 answer 36 views

How does a change in pH affect the equilibrium position of a reaction between a weak acid and its conjugate base?

answered 6 days ago in Chemical equilibrium

1 answer 22 views

According to the humanistic approach, what is the role of free will in personal growth?

asked Jan 20 in Psychology

1 answer 4 views

Who was Aaron Beck and how did he contribute to CBT theory?

answered Jan 17 in Psychology

1 answer 19 views

Which type of glaciers form several unique features through erosion, including cirques, arêtes, and horns?

answered Jan 8 in Science

1 answer 14 views

Which country is formed by a hotspot along the mid-atlantic ridge?

asked Jan 8 in Science

1 answer 35 views

What term is used to describe the energy reserve carbohydrate of animals?

asked Jan 8 in Science

1 answer 23 views

What system lets flatworms maintain a proper balance of water and salts?

answered Jan 7 in Science

1 answer 48 views

What kind of solution might cause animal cells to burst?

answered Jan 7 in Science

1 answer 20 views

What is the process that allows organisms with better traits to survive and produce?

asked Jan 7 in Science

1 answer 32 views

The barrier defenses are not a response to infections, but they are continuously working to protect against a broad range of what?

asked Dec 31, 2024 in Science

1 answer 19 views

Mammals are endothermic vertebrates that have four limbs and produce what type of eggs?

answered Dec 31, 2024 in Science

1 answer 28 views

Water that is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs is known as what?

answered Dec 27, 2024 in Science

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