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Question- What is the freezing point, in oC, of a solution containing 338 g of ethylene glycol, CH2(OH)CH2(OH), dissolved in 900 mL of water? Kf water is 1.86 oC/m. i = 1
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Enough of a monoprotic acid is dissolved in water to produce a 0.0186 M solution. The pH of the resulting solution is 2.30. Calculate the Ka for the acid.
the bottom of a box has a surface area of 25.0 cm2. the mass of the box is 34.0 kilograms. acceleration due to gravity
consideringnbsp the given reaction 3 baso4s 2 alcl3 aqregal2so43aq 3bacl2 aqnbsp write the balanced equation for the
If 17.2 mL of 0.800 M hydrochloric acid solution are required to neutralize 5.00 mL of a household NH3 solution, determine the molar concentration of the NH3,ammonia?
A blight has wiped out the pineapple crop. You are asked to synthesize the ester that is responsible for the scent of pineapple, butyl butanoate. Draw the skeletal structure of the reagents needed to make this scent.
At 600 degrees C, the equilibrium constant for the reaction 2HgO(s) --> 2Hg (l) +O2 (g) is 2.8. Calculate the equilibrium constant for the reaction 1/2O2(g) + Hg(l) --> HgO (s)
Sucrose decomposes in acid solution into glucose and fructose according to first-order rate law, with a half-life of 3.33 hr at 25 degrees Celsius. What fraction of the sample remains after 9.00hr
Assume that the trial wave function = (1-ar)-2 is chosen to explain the hydrogen atom, where a is a variable parameter. Presume that is normalized. The resulting energy expression for the hydrogen atom is E= a2/5-a/2 in atomic units.
Why does clove oil float on the surface of the aqueous distillate rather than sinking to the bottom?
What is the Na concentration in 3.25M Soduim Sulfate, 1.5M Sodium Carbonate, 0.885 Sodium Bicarbonate
calcium iodide breaks apart into one Ca2+ ion for every two I- ions, so a solution that is 1.0 M in CaI2 is 2.0 M in I-.) Determine the molar concentration of calcium iodide in the original solution
Calculate the initial effusion rate. If this rate continued how much time would pass until the pressure dropped to 0.90 bar? (actually the rate changes with pressure- indicated why using the equations). assume values for nitrogen
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