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Find delta s, q,w, and delta u for the reversible isothermal expansion of 3.000mol of argon (assumed ideal) from a volume of 100.0L to a volume of 500.0L at 298.15K
An 18.0-g sample of magnesium is completely burned in the presence of air to form magnesium oxide. What is the mass of the magnesium oxide obtained?
A balloon filled with helium gas has a volume of 620 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm. Assuming that the temperature has remained the same, what volume does the gas..
Which of the following would be expected to be the most stable carcocation. Using good scientific terminology with the aid of structures/equations, clearly explain your answer.
What is the relationship between K and Kc?
In photosynthesis, plants from glucose (C6H12O6) and oxygen from carbon dioxide and water, Part B, Calculate delta H rxn at 15 degree C
Concentrated sulfuric acid is used as a catalyst for the esterfication of acetic acid in the preparation of isopentyl acetate. Why is the sulfuric acid needed if another acid,
175g of water was heated from 15 degrees to 88 degress celsuis. how many kilocalories were absorbed by the water?
Explain solution of an unknown acid HX, determine that the pH of the solution is 4.00. What is the [H3O+] in the solution?
A gas mixture with a total pressure of 750 contains each of the following gases at the indicated partial pressures: , 253 ; , 120 ; and , 173 . The mixture also contains helium gas.
Ethylene glycol, antifreeze, has a density of 1.11 g/cm^3.a. What is the mass, in grams, of 410 mL of ethylene glycol?
In a gas mixture, the partial pressures are nitrogen 435 , oxygen 145 , and helium 240 . What is the total pressure ( torr) exerted by the gas mixture?
A sample of 1-naphthoic acid is contaminated with a small amount of sand and NaCl. Using active extraction (changing the polarity) and a gravity filtration to remove a component, describe how you would obtain pure naphthoic acid from this mixture.
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