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Assume that 100.0 mL of 0.200 M CsOH and 50.0 mL of 0.400 M HCl are mixed in a calorimeter. The solutions start out at 22.50 C, and the final temperature after reaction is 24.28 C. The densities of the solutions are all 1.00 g/mL, and the specific heat of the mixture is 4.2 J/gC.What is the enthalpy change for the neutralization reaction of 1 mol of CsOH in kJ?
when 0.500 l of a 1.00 m solution of Pb( NO3) 2 is mixed with 0.500 l of a 1.00 m solution of Kl how many grams of lead(II) iodide are formed
suppose the flame on a gas burner emits light just like a blackbody. The flame appears blue, emitting most of its light at a wavelength of 475 nanometers.
A 81 L sample of dry air cools from 145C to -22C while the pressure is maintained at 2.85 atm. What is the final volume?
How many milliliters of 4.21 M NaOH are needed to completely neutralize 76.9 mL of 0.340 M H3PO4?
One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transmission that begins in the state with n = 5
What is the osmotic pressure of human blood at 37°C if human blood is isotonic to 0.16 M NaCl solution? Remember that NaCl almost completely ionizes in water.
Calculate the pH of a solution when 0.200 moles of solid NaOH is added to 2.00 liter of 0.250 M HCl. Assume no change in volume.
Suppose scheme one involves the reaction of the Grignard reagent containing more carbon atoms with the carbonyl compound containing less carbon atoms and scheme two involves the reaction of the Grignard reagent containing less carbon atoms with th..
While 1.22 g of a white solid, supposed of being pure cocaine, a molecular compound, is dissolved in 15.60 g of C6H6 the freezing point is lowered by 1.32 ¬0C. Compute the molar mass of the solid. Kf value for benzene = 5.12C/m.
A piece of silver (25 g) is heated to 100 degrees celsius, then dropped into 42.5 g of water with a temperature of 21.7 celsius. Assume they come to the same temp, what is the final temp of the silver and water? (Molar capacities: Ag 25.351 J/mol*..
the sample has a mass of .211 grams,a volume of .25 and a temperature of 275K at a pressure of .945 atmospheres. What is the most likely element forming the sample?
How many mL of 5M NaCl are required to prepare 1500 mL of 0.002 M NaCl? What would be the concentration of the diluted solution from Problem expressed in mM, ?M, and nM
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