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The (delta H degrees f) of TiI3 (s) is -328 kJ/mol and the (delta H degrees) for the reaction 2 Ti(s) + 3 I2(g) -----> 2TiI3 (s) is -839 kJ/MOL. calculate the (delta H) of sublimation of I2 (s), whch is a solid at 25 degrees celcius.
Based on position in the periodic table and electron configuration, arrange these elements in order of decreasing Ei1. Rank the elements from highest to lowest ionization energy
Given 20g of each of the gases co2, h2 and Ne in a flask with a totally pressure of 2.50 atmm what is the partial pressure of each gas
Calculate the pH of a solution formed by mixing 5.00 mL of 0.015 M HBr with 20.0 mL of 0.200 M HCL.
Can't make it work. You have 0.035 +/- 0.002 mol of red dye, which you mix (thoroughly) with 25.00 +/- 0.05 mL of water. What is the concentration of the dye mix .001400 +/- .000008 M
How many grams of ice would be melted by the energy obtained as 23.6 g of water vapor is condensed at 100 degrees celcius and cooled to liquid at 0 degrees celcius
Describe an experiment using only hot and cold water that would enable you to verify that the heat capacity of your coffee-cup calorimeter is about 1.0x 10 1J/degrees C. Be specific
A 10.0 ml sample of aqueous HCl requires 18.66 ml of 0.206M NaOH to reach the endpoint . What is the molar concentration of HCl ? The chemical equation of the reaction is
Ozone decomposes to oxygen gas. 2 O3(g) 3 O2(g) A proposed mechanism for this decomposition is shown below. O3 O2 + O (fast, equilibrium) O3 + O 2 O2 (slow) What is the rate law derived from this mechanism
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At 0 C,the volume of the gas is 361 mL. To what temperature must the gas be heated to occupy a volume of 492 mL.
what is the ppm of hardness for the 0.00100 M CaCl2 solution?
if a sample of 3.16g at a pressure of 0.750 atm and temperature of 45 degree celsius then calculate what is the molar
The Born-Haber process is used to determine the enthalpy of formation of common salts as it is the hardest process to measure. For KBr the enthalpy of formation follows this equation
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