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A 250-L tank is evacuated and connected to a 50.0-L bulb filled with compressed argon. After they are joined, the pressure in the bulb falls to 2.20 atm. If the temperature remains at 25 °C throughout the process, what was the initial pressure in the 50.0-L bulb?
a solution of ethanol c2h5oh in water is prepared by dissolving 60.0 ml of ethanol density 0.79 gcm3 in enough water
sample of benzoic acid is burned in a bomb calorimeter at 25 degrees C, and the temperature increases by 3.72 degrees C. What is the calorimeter constant?
How would you characterize the difference in approaches between the Bowker and Prothero required texts especially regarding the Abrahamic Traditions? Did anything leave a lasting impression?
What are the similarities between the Rutherford-Bohr atom and the modern quantum mechanical model? What are the differences? Why is the Rutherford-Bohr model still useful? In what situations would you use one model over the other? Why?
One mole of NOCl gas is added to a 4.0L container. the NOCl undergoes slight decomposition to form NO gas and Cl2 gas. If the equilibrium constant, Kc, for the rxn 2NOCl(g)--->2NO(g)+Cl2(g) is 2.0x10^-10 @ 25 degrees celsius, calculate the concent..
A sample of 10.7 g of CO reacts completely with O2 to form CO2. How many grams of CO2 will be formed
Each has a unique set of wavelengths associated with it, how are these different wavelengths generated
how many grams of Ni(OH)2 are produced from the reaction of 35.0 mL of a 1.75 M NaOH solution ans excess NiCl2? c)what is the molarity of 30.0 mL of a NiCl2 solution if this volume of solution reacts completely with 10.0 mL of a .250 M NaOH soluti..
Calcium nitrate will react with ammonium chloride at slightly elevated temperatures, as represented in the equation Ca(NO3)2(s)+2NH4Cl(s)--->2N2o(g)+CaCl2(s)+4H2O(g)
How many Joules are required to heat 2 L of water in a pot from 20 degree C to the boiling point of water? The specific heat of water is 4.18 J/g. Degree C and the density of water is 1 g/mL
at a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene=0.600
Assume you have prepared 100.0 mL of a buffer solution using 0.400 mol of acetic acid (pKa = 4.74) and 0.400 mol of sodium acetate. The pH of this buffer solution is initially 4.74. After preparing this buffer solution, you added 55.0 mL of a 1.10..
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