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Question- What is the vapor pressure, in mmHg, of a solution prepared by dissolving 3.00 * 10^2 g of urea (NH2)2CO (a nonvolatile solute) in 9.00 * 10^2 g of water at 63.5 oC. The vapor pressure of water at 63.5 oC is 175 mmHg.
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when 0.500 l of a 1.00 m solution of Pb( NO3) 2 is mixed with 0.500 l of a 1.00 m solution of Kl how many grams of lead(II) iodide are formed
How to write the rate expression in terms of the appearance of each product or disappearance of each reactant 2 HBr(g) _ H2(g) + Br2(g)
If you drop 25 g warm nails initial temp 65.4 into coffee cup calorimeter that contains 100.0 g water at 20 degrees Celsius, what will the temperature be.
RNA is readily hydrolyzed by alkali, whereas DNA is not. Why. Think of pH required for nucleophile generation
Question- Calculate the equilibrium constant (Kc) for the reaction at 298 K. The voltaic cell described by the balanced chemical reaction has a standard emf of 0.73 V.
How much concentrated solution would you take to prepare 2.80 L of 0.425 M HCl by mixing with water
If you started a reaction with 2.00mmol of cyclopentanone (0.18ml) and 8.00mmol of benzaldehyde (0.81ml) what is the theoretical of the final product dibenzalcyclopentanone
How many moles of NaOH should be added to a solution containing 0.440 moles of formic acid, HCOOH, to prepare a formic acid/formate
Write the expression for Kc for the following reactions. In each case indicate whether the reaction is homogenous or heterogeneous. a) 3NO(g) ?? N2O(g) + NO(g)
Question- If it is possible draw the Structural Isomers, Geometric Isomers and Optical Isomers for (C2F2Br2) and (C2HCL3)
Identify the two important classes of catalysts. Choose a catalyst that exists in the human body. Explain its importance and how it works.
What is the concentration of iron in the steel sample? Express your answer as grams of Fe per grams of steel (g Fe2 / g steel).
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