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First Law of Thermodynamics

First Law of Thermodynamics

First Law of Thermodynamics+ One mole of Ne gas with VC = 3R/2 undergoes (a) a reversible expansion at constant P = 1 atm from V1 = 20 l to V2 = 40 l and (b) reversible heating at constant V = 15 l in which the pressure changes from P1 = 0.6 atm to […]

Newman projections

Newman projections

Newman projections Draw the Newman projections for the anti and gauche forms of 1,2-dibromoethane. The molecule has a dipole moment of 1.0 D. a) Which form is responsible for the molecular dipole (gauche/anti)? (b) Which conformation of 1,2-dibromoethane is present in the greatest amount at equilibrium (eclipsed/gauche/…

Balance equation

Balance equation

Balance equation Write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (C6H12O6) and oxygen gas. Express your answer as a chemical equation. Identify all of the phases in your answer.

General Chemistry 2 Help. LIFESAVER

General Chemistry 2 Help. LIFESAVER

General Chemistry 2 Help. LIFESAVER A practical joker adds table salt (NaCl) to a sugar( C12H22O11) container that originally held 5 kg of sugar. A chemist wishes to prepare a 1.5 molal solution of sucrose in water. He measures out the appropriate amount from the contaminated container to mix with 3.00 kg of water. His […]

calculate percent by mass

calculate percent by mass

calculate percent by mass consider the following compound: Zn3(PO4)2 * 4H2O a.) calculate the percent z…

Chem 2

Chem 2

Chem 2 Calculate the osmotic pressure of a 0.0100 M potassium at 25 degrees Celsius

Technology’s Impact on Education

Technology’s Impact on Education

Technology’s Impact on Education                         FINAL PROJECT OUTLINE   Technology’s Impact on Education   INTRO:   Technology has had a huge impact on how we educate ourselves, and I’d like to show what I’ve learned about some of the effects it has had both positive and negative.     IDEA 1   Positive impacts […]

Phase Changes

Phase Changes

Phase Changes If sea water contains 15 ppm gold, how many kilograms of sea water must be processed to remove 1.00 g of gold?

inorganic chemistry- thermal expansion

inorganic chemistry- thermal expansion

inorganic chemistry- thermal expansion One mole of an ideal monatomic gas initially at 300K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. Calculate change in E, q, w, and change in H and the final temp if the expansion is carried out according to each of the […]