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What is the mass/vol % ethanol in an ethanol-water solution with a density of 0.875 g/mL and containing 65.0% ethanol by volume? The density of pure ethanol is 0.789 g/mL
Derive an expression for the compression factor of a gas that obeys the equation of state P(V - nb) = nRT
In an experiment 0.4000moles of hydrogen gas and 0.400moles of iodine vapor are mixed in a 1.00L vessel and allowed to come to equilibrium. if Kc=49, what is the equilibrium concentration of the only product, hydrogen iodide
how many mM of nitrogen atoms in 1g/L of (NH4)2SO4. molecular mass of (NH4)2SO4 is 132.14g/mol
A saturated solution of Mg(OH)2 in contact with undissolved Mg(OH)2(s) is prepared at 25 degrees C. The pH of the solution is found to be 10.17.
if 5.00 ml of a solution containing .0400 m iron is placed in a 100.0 ml volumetric flask and filled to the mark with
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum: C7H12Cl2: ? 1.07 (integral = 6203, s); ? 2.28 (integral = 1402, d, J = 6 Hz)
When current is allowed to flow, which species is oxidized. What is the value of E0cell
Identify which pairs of all of the stereoisomers of 2-chloro-3-methylpentane are enantiomers, diastereomers, and/or meso compounds.
Calculate the pH of the solution after the addition of 0.100 mL NaOH. The Ka for HC2H3O2 is 1.8x10^-5.
radioactive isotope x has been found in rock units s and q. isotope x breaks down into isotope z with a half life of
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.59. What was the concentration of the solution.
What pH will would measure for these solutions immediately? What would be the pH after the solutions equilibrate with the atmosphere
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