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The vapor pressure of chlorine dioxide (ClO2) is 155 Torr at 22.75 C and 485 Torrat 0C. what is the standard enthalpy of vaporization?
Calculate the pressure inside the graduated cylinder it the height of the water is 5mm higher than the water in the trough. The atmospheric pressure is 760 mm Hg
Calculate the formula mass of each compound given below. Keep at least one decimal place in atomic masses from the periodic table.
a sample of argon is at a pressure of 1.24*10^4 kPa of 24 degrees c in a rigid 25-L tank. How many moles of argon does this tank contain?
The half life of pyruvic acid in the presence of an aminotransferase enzyme (which converts it to alanine) was found to be 221 s. How long will it take for the concentration of pyruvic acid to fall to 1/69 of its initial value in this first order ..
Consider the titration of 50.0 mL of 0.20 M NH 3 (K b =1.8×10 ?5 ) with 0.20 M HNO 3 . Calculate the pH after addition of 50.0 mL of the titrant.
ATP is created from ADP and Pi in the mitochondria of most cells. this reaction is thermodynamically endergonic. what directly provides the energy for this reaction to occur
The Kp for the reaction is 4.3X10^-4 at 648K. Determine the equilibrium partial pressure of NH3 in a reaction vessel that initially contained 0.900atm N2 and 0.500 atm H2 at 648K
Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 61.9 g of propane, determine the following. (a) Calculate the moles of compound. (b) Calculate the grams of carbon.
What is the new volume of the balloon (in mL) at constant temperature?
What are the various uses of radioactivity in healthcare? What are the future trends in healthcare with respect to the use of radioactivity?
Consider the titration of 0.1000 M HBr with 0.1000 M KOH. Calculate the pH after 55.00 mL of the base has been added to 50.00 mL of the HBr solution
In the production of printed circuit boards for the electronics industry, a 0.235 mm layer of copper is laminated onto an insulating plastic board. Next a circuit pattern made of a chemically resistant polymer is printed on the board
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