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At what temperature degrees C will xenon atoms have the same average speed that Cl2 molecules have at 25 degrees C?
The mass of an electron is 9.11 * 10^{-31} kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31*10^{-10}m, how fast is the electron moving relative to the speed of light?
Consider a saturated solution of calcium fluoride in 0.075 M potassium nitrate. Complete the following tasks, and then answer the question. (Note: Your textbook may not employ the terms Kspo and Ksp'. Please refer to the lecture notes.)
Distilled water in equilibrium with air contais dissolved carbon dioxide at a concentration of 1.0 x 10^-5 M. Calculate the pH of such a solution.
sample of sodium reacts completely with 0.142kg. of chlorine forming 234 g. of sodium chloride. what mass of sodium
A titration is performed by adding 0.400 M KOH to 40.0 mL of 0.300 M HCl. What is the pH after addition of 5.0 mL of the base?
Briefly explain why it is important to allow a hot sample to cool to room temperature before you determine its mass.
Phenol is a weak acid that is sometimes used as a disinfectant. Calculate the pH of a solution of 0.0100 M phenol. Ka for phenol is 1.3 X 10-10.
What are the net ionic equations for: 1. Potassium Fluoride and Ammonium Chloride and 2. Sodium Hydrogen Sulfite and Potassium Cyanide
Aspirin is an organic acid with formula C8H7COOH and molar mass 180.16171 g/mol. A 1.30 g tablet is titrated with 0.1500 M HCl and the endpoint is reached
For the D3h point group draw 3X3 transformation matrix for each of the operations of this point group on a set x,y,z coordinate
The formal charge on the P atom is zero and It is best described with three resonance structures.
Wet steam flows in a pipe at a pressure of 700 kPa. To check the steam quality, the wet steam is expanded to pressure of 100 kPa. The expansion process may be assumed to be isenthalpic
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