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When 100mL of an aqueous solution containing 1.0g of caffeine is extracted with 10mL of chloroform at room temperature, .5g of caffeine is transferred to the chloroform layer. Compute the distribution coefficient of caffeine between chloroform and water at room temperature.
The decomposition of ozone in the upper atmosphere is facilitated by NO. The overall reaction and the rate law are O3 + O ---> 2O2 rate = k[O3][NO]
Explain what is the pH of 355.0mL of an aqueous solution containing 0.607 g of the strong acid trifluoromethane sulfuric acid(CF3SO3H)
Calculate the molarity of a solution made by taking 25.0 mL of 3.95 M. CaCl2 and diluting it to a final volume of 200. mL
The test tube contained some water (besides the metal) that was subsequently added to the calorimeter. Considering a higher specific heat for water, will the temperature change in the calorimeter be higher, lower, or unaffected by this technique e..
what volume of 0.250 moll cach3coo3 calcium acetate solution should you add to 25.00 ml of 0.500 moll ch3cooh to
Calculate the concentration of all species in a 0.050 M tartaric acid solution. These species include [H3O+], [HC4H4O6^1-], H2C4H4O6] and [C4H4O6^2-]. For tartaric acid, Kal=1.0 x 10^-3 and Ka2=4.6 X 10^-5.
Calculate the molarity of a solution containing KCI and water whose osmotic pressure at 31.4 degrees Celsius is 125 torr. Assume complete dissociation of the salt. What are the steps to arrive at an answer of 0.00329M
How much Ca(OH)2 is required to remove 90% of the PO4 3- from 5.5x10^6 L of drinking water containing 25 mg/L of PO4 3-
What is the final volume of the balloon. Assume that the pressure inside and outside the balloon has the same value. Ans. V = 34.8 L
The compound below is treated with chlorine in the presence of light. Draw the structure for the (organic) species produced by reaction of the compound with a chlorine atom. Assume reaction occurs at the weakest C-H bond.
Give the balanced equation for the reaction: formation of 1 mol nitrogen dioxide from its elements (heat is absorbed)
What is the value of Ksp for Ag2SO4 if 5.40 g is soluble in 1.00 L of water?
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