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calculate the average bond energy of one O3 bond. What wavelength has just the right amount of energy to break this bond?
given that the molar enthalpy of vaporization delta h for H2O(l) is 44kj at 298k, what is the standerd enthalpy change for the reaction 2H20(G)+ O2(g)---->2H2O(G)?
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?
An experiment requires 44.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
Consider the titration of 52.0 mL of 1.2 M NaOH with 1.0 M HCl. Find the pH at all the following points. At the equivalence point.
If the pressure of the ocean breaks the submarine forming a bubble with a pressure of 250 atm pushing on it, how big will that bubble be?
assume that an astronaut's energy comes from burning glucose(c6h12o6). write 3 equations (including delta H values that represent the heats of formation for each C6H12O6, H20 and CO2.
A solution is prepared by adding 60.0 mL of 0.060 M HBr to 180.0 mL of 0.70 M HI. Calculate the concentrations of all species in this solution. HBr and HI are both considered strong acids
the equilibrium constant for a chemical transformation can be predicted from its stoichiometric coefficients whereas the rate law must be determined experimentally.
What is the molarity of a solution prepared by adding 29.3 g of HNO3 to enough water to make 2 L of solution
Determine the pressure (in atm) inside the can if a metal can of 1.00 qt contains 0.150 grams of Helium at a temperature of 20 degrees Celsius also explain Is this pressure greater or less than standard atmospheric pressure?
the pH of a saturated solution of a metal hydroxide MOH is 10.85 calculate the Ksp for the compound
What volume in L is occupied by 19.62 g of methane, CH4 (MM = 16.04 g/mol) at 23 °C and 1.34 atm?
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