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The molar heat of fusion of water is 6.01 kJ/mol. How much heat energy is required to melt one ice cube in a soft drink to form liquid water at zero degrees celcius, if the ice cube has a mass of 18.9 g?
in photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?
A sodium chloride solution is made at 68 deg F that contains 16.28 g of NaCl in 100 cc of fresh water. The fresh water density is 0.9982 g/cc. What is the density of the solution in g/cc and Lbm/gal
the mean activity coefficients for aqueous solutions of NaCl at 25C are given below. Confirm that an improved fit is obtained with the extended law
A sheet of aluminum foil has a total area of 1.000 ft^2 and a mass of 3.626g. What is the thickness of the foil in millimeters (density of AL = 2.699 g/cm^3)?
choose from among the following: disulfide bond, salt bridge, hydrogen bonding or dispersion forces. A) glutamic acid and lysine B) tyrosine and lysine C) Ile and Ala D) two cysteines
One of the steps in the commercial process for converting ammonia to nitric acid is the conversion of NH_3 to NO: 4NH_3 + 5O_2 yields 4NO +6H_2O In a certain experiment, 2.05g of NH_3 reacts with 3.76g of O_2 How many grams of NO and of H_2O will ..
What is the molarity of a solution that is 7.00% by mass magnesium sulfate and has a density of 1.071.
Compute A current is drawn from the cell until 1.20 grams of Ag have been deposited at the Ag electrode. Determine the value of E for the cell at that stage of operation.
Suggest to her a visual functional test that she can use to detect the presence of an alkene. Explain why it is specific for alkenes in this situation.
What is the empirical formula for an prganic compound whose percentage composition is 40.0% carbon
Compound B is quite soluble in toluene, but only slightly soluble in petroleum either. How could these two solvents be used in combination in order to recrystallize compound b
if the density of carbon dioxide in air is .65mg/L, what volume is occupied by 25kg of carbon dioxide?
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