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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.
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g
HClO is a weak acid (Ka = 4.0 x 10^-8) and so salt NaClO acts as a weak base. What is the pH of a solution that is 0.020 M in NaClO
Calculate the ratio of the masses of the buffer components HClO/KClO required to make a buffer with a pH of 7.1
Write a short article about how chromatography is used in every day life. I've been unsuccessful finding much information on exactly how and why it is used for any specific task
An electric power station annually burns 3.6 107 kg of coal containing 2.4 percent sulfur by mass. Calculate the volume of SO2 emitted at STP
proportional only to the numbers of hydrogens that give each product when substituted for by chlorine. What would be the relative yield of each product?
The fuel used in many disposable lighters is liquid butane C4H10 How many carbon atoms
If a mixture of gases contained 78% nitrogen at a pressure of 984 torr and 22% carbon dioxide at 345 torr, what is the total pressure of the system
What generalization can you make about the rotation of a Fischer projection formula in the plane of the paper? Answer a. 90° rotation results in an enantiomer, 180° rotation results in the identical molecule.
Give the basicity order? List from most to least basic. 3. Explain the basicity order in terms of resonance and inductive (polar) effects and solvation effects.
When 24 mL of a 190 mL stock solution containing 1.8 M BaF2 is diluted to 78 mL, what is the concentration of Ba2+ in the new solution?
The reaction of fluorine of 7.6 grams with excess chlorine(Cl) produced 3.3 grams of ClF3. Determine the percent yield of ClF 3 was obtained??
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