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Mercury is poured into the opening end of a J-shaped glass tube which is closed at the short end, trapping air in that end. Assume ideal gas behavior. The short arm has a length of 50cm and the long open arm has a length of 10 cm. What is the length of the trapped air column in the short arm when the long arm is filled with mercury. Neglect the curvature of the closed end.
Describe the transition using term symbols. Compute the wavelength, frequency and wavenumber of the transition. by how much does the mean radius of the electron change due to the transition.
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 9.70 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C
Using the values for the heat of fusion, specific heat of water, and or heat vaporization, calculate the amount of heat energy in each of the following
Let's abbreviate the fully protonated form of the diprotic amino acid alanine (NH3+-CHCH3-COOH) as H2L+. Find the pH and concentrations of H2L, HL, and L- in
When 0.450kJ of heat is added to the gas, it expands and does 219J of work on the surroundings. What is the value of \Delta H for this process? Answer in units of kJ
what is the molecular mass nonionic solutes of 8.02 grams of solute in 861 grams of water lower the freezing point to -0.430 c.
cis-dibenzoylethylene is converted to a more stable, new product, ethyl 4-phenyl-4-phenoxy-3-butenoate. What is the structure of the new product
approximately what percentage of the acetic acid molecules are protonated and neutral in charge at pH 5.7?
A container holds 355 mL of a mixture of nitrogen and carbon dioxide gases. Calculate the partial pressures of each gas if the container is at 27.3oC.
Which species exhibit hydrogen bonding. I. H3C - O - CH3 II. CH3 - CH2 - OH III. CH3 - CH2 - NH2
Combustion analysis of toluene, a common organic solvent, gives 4.12mg of {\rm{CO}}_2 and 0.959mg of {\rm{H}}_2 {\rm{O}}. If the compound contains only carbon and hydrogen, what is its empirical formula
A corrosionist pipetted a 50.00 ml sample of an unknown brine and titrated it with 37.64 ml of 0.1024 M silver nitrate solution. Calculate the ppm of salt (NaCl)in the sample.
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