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The mass of a golf ball is 45.9 g. If it leaves the tee with a speed of 78.0 m/s, what is its corresponding wavelength?
A solution is made by mixing 500 mL of .121 M NaOH with 500 mL of .1 M CH3COOH. Calculate the equalibrium concentrations of H+. CH3COOH, CH3COO-, OH- and Na+
A close chemical relative of the banned insecticide DDT is methoxychlor (C16H15Cl3O2). Methoxychlor is currently used as a home insecticide. Calculate the mass percent of oxygen in methoxychlor.
CO(g) + 2H2(g) = CH3OH(g) , what is the equilibrium constant? , where CH3OH = 0.0412 atm, H2 = 0.274 atm, CO = 0.914 atm.
Calculate the standard emf for each of the following reactions:a)H2(g) + F2(g)---> 2H+(aq) + 2F-(aq)
The reaction of 0.130 moles of a metal with an acidic aqueous solution in a calibrated calorimeter causes the temperature to increase by 49.0°C.
What is the minimum amount of hydrogen gas in grams required to completely hydrogenate 12.5 Kg of 2-butene?
A cannonball made of iron has a volume of 115 cm3. If iron has a density of 7.86 g/cm3, what is the mass in grams of the cannonball?
Suppose 1500 J of heat energy are put into a sample of liquid water at 25 degrees celsius, and the final temperature of the water is 75 degrees celsius. How many grams of water are present?
A 50.0g silver object and a 45.0 g gold object are both added to a 55.5 mL of water contained in a graduate cylinder. what is the new water level in the cylinder.
Calculate the pH of a solution resulting from mixing together the following: a) 37ml of HCL 0.1M+33ml of NaOH 0.03M b) 55ml of HNO3 0,7M+88ml of KOH 0.8M c) 170 ml of H2SO4 0,44M_29ml of NaOH 1.2M d)76 liters of HBr 0.01M+2 liters of Mg(OH)2 2.1M.
What is the specific heat of a substance that it takes 192 Joules to raise the temperature of 45 grams by 6 degrees Celsius
Why are acid chlorides more reactive towards nucleophilic substitution than ethyl esters? Give an explanation of why acid chlorides are more reactive toward nucleophilic substition than are the corresponding ethyl esters.
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