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Consider the decomposition of calcium carbonate. Assume that ?H° = 177.8 kJ/mol and ?S° = 160.5 J/K·mol for the temperature range.CaCO3(s) -> CaO(s) + CO2(g)
A 1L steel tank is fitted with a safety valve that opens if the internal pressure exceeds 850 torr. It is filled with helium at 23 oC and 0.991 atm and placed in an oil bath.
A compound, A, c6h8, yields a single organic product, B, upon ozonolysis and absorbs two moles of hydrogen on catalytic hydrogenation to give C
A mixture of gases contains 5.31 g of He, 2.91 g of SO2, and 5.62 g of Ne. If the total pressure of the mixture is 3.81 atm, what is the partial pressure of each component
When Methane is burned with oxygen, the products are carbon dioxide and water. If you produce 9gms of waterand 11grams of carbon dioxide from 4gms of methane only 16gms of oxygen were needed.
Calculate the number of milliliters of stomach acid neutralized by 1 tablespoon of milk of magnesia (1 tablespoon = 3 teaspoons).
What molar ratio of sodium acetate to acetic acid should be used to prepare a buffer with pH = 4.5? Ka acetic acid = 1.8 x 10-5.
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration. How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay?
a buffer is prepared by mixing .200 mole of formic acid with .300 mole of sodium formate in a volume of 200 ml what is the initial ph.
61.0 mL of a solution(1.60 M) is diluted to a volume of 208 mL. A portion of that solution(104-mL) is diluted using 121 mL of H 2 O. determine the final concentration?
What makes Maleic acid (isomer of but-2-enedoic acid), very soluble in water and only sparingly soluble in CCl4
Peonin is a red pigment found in the petals of peony flowers. Why do you think peonin is bonded to two hexoses? What monosaccharide(s) would be produced by acid-catalyzed hydrolysis of peonin?
A chocolate caramel pecan piece of candy contains 115 food calories (CaI). If the heat energy contained in the piece of candy were transferred to 53.5 kg of water at 25.0 C, what would be the final temperature of the water? [Specific heat of H2O =..
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