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A sample of gas at 310 Kelvin and 1.2 atmospheres has a density of 2.78 g/L, what is the molar mass of this gas? Show all of the work used to solve this problem.
The reaction between ethyl iodide and hydroxide ion in ethanol (c2H5OH) solution, C2H5I(alc) + OH -(alc) C2H5OH(l) + I -(alc) has an activation energy of 86.8 kj/mol and a frequency factor of 2.1*10^11 A solution of KOH in ethanol is made up by di..
a 295- flask contains pure helium at a pressure of 757 . a second flask with a volume of 460 contains pure argon at a
Draw the Lewis structure and structural formulas for CCl3F. Sketch the spacefiling model and the charge-density model for this molecule.
Write Lewis structures, including resonance structure and formal charges if necessary
What ratio of concentrations of the molecular base you chose in part a and its conjugate acid would be necesarry to achieve a pH of exactly 10.00?
As a technician in a large pharmaceutical research firm, you need to produce 100 mL of 1.00 M potassium phosphate solution of pH = 7.00. The pKa of H2PO4 is 7.21. You have 2.00 L of 1.00 M~ KH2PO4 solution and 1.50 L of 1.00 M~ K2HPO4 solution
Lactic acid, CH3CH (OH)COOH, has a Ka value of1.4x10-4. Explain how many grams of lactic acid must be added to make 193.0 mL of solution with a pH of 2.27
Calculate the partial pressure of each of the gases in the mixture. He atm Ne atm Ar atm (b) Calculate the total pressure of the mixture. atm
Barium sulfate, , is used in medical imaging of the gastrointestinal tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail
a single crystal ni is oriented with the 001 direction parallel to the rod axis and is loaded in uniaxial tension in
What mass of sucrose should be combined with 468 of water to make a solution with an osmotic pressure of 8.75 at 295 ? (Assume the density of the solution to be equal to the density of the solvent.)
Given below is a table ...on the right are the molarities and percent transmittance (at fixed path length and wavelength) For three known solutions and an unknown solution of a compound in water: Which one of the following values is possible as the m..
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