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The upper falls in Yosemite National park, at 440 m, is among the 20 highest waterfalls in the world. Estimate the difference between the temperature of the water at the top and bottom of the falls. The molar heat capacity of water (molecular mass 0.018 kg) is 80 J K-1 . The acceleration due to gravity is 9.8 Neglect evaporation and the change in elevation.
An aqueous solution at 25 °C is 2.28 x 10^-7 M in CuNO3 and 5.03 x 10^-7 M in AgNO3. What is the lowest cyanide concentration at which a precipitate appears
What is the boiling point of an aqueous solution containing 468g of sugar in 350 g of water. Boiling constant of water is 0.53 o/m
At 1500 degrees C the equilibrium constant for the reaction CO(g)+2H2(g) -->
Determine how much Nitrogen gas is consumed if 13.6 grams of FeN are formed in above reaction?
Phosphoric acid is produced by the reaction of calcium phosphate, Ca_3(PO_4)_2, with sulfuric acid. How much phosphoric acid can one make from exactly one U.S. ton (2000 lbs) of calcium phosphate
calculate the number of excess reagent units remaining when 100 C4H10 molecules and 611 O2 molecules react?
joseph priestley discovered oxygen in the eighteenth century by using heat to decompose mercuryii oxide2 hgos heat
Nickel metal in 0.1M nickel nitrate solution Copper metal in 0.1M copper nitrate solution The solutions are joined by a simple salt bridge. The nickel corrodes and the copper plates on during operation of the cell. Answer the following question: W..
A standard l00-ppm quinine solution registered 125 when measured under conditions identical to those for the diluted sample. Calculate the mass in milligrams of quinine in the tablet.
Calculate the cell potential for the following half cell if it is connected to a standard calomel electrode (not a SHE) as the anode.
1.assuming that the answer to part b is yes at what temperature will the crystals begin to appear when the students
Calculate the molality of a calcium chloride solution prepared by dissolving 69.34 grams of calcium chloride in 638.7 grams of water.
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