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What mass of sucrose should be combined with 479 of water to make a solution with an osmotic pressure of 8.00 at 315 ? (Assume the density of the solution to be equal to the density of the solvent.)
Name the complex ion present when the followng compounds are dissolved in water and determine the number of moles of each species present if one mole of the compound is dissolved
Using data from the thermodynamic quantites at 298.15 K, calculate delta H^degree, delta S^degree, and delta G^degree at 298K for each reaction. Show that delta G^degree = delta H^degree - T(deltaS^degree)
Many drugs are high-molecular-weight amines that are weak bases. Such amines are not soluble in water, which limits the ways they can be administered and means that they are not soluble in body fluids such as blood plasma and cerebrospinal fluid
Based on electronegativity trends in the periodic table, predict which of the following compounds will have the greatest % ionic character in its bonds. a. H2O b. LiI c. CaO d. RbF e. HCl
The solubility of slaked lime, Ca(OH)2, in water is 0.185 g/100 mL. What volume of 0.00300 M HCL is needed to neutralize 14.0 mL of saturated Ca(OH)2 solution
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women. a)How many groups could be formed? b) which sex is in excess? By how much? (show calculation..
The heat of combustion of cyclobutane is 650.3 kcal/mol. How much energy is released during the complete combustion of 450 grams of cyclobutane.
Compute the increase in entropy when 3.50 moles of an ideal gas is heated from 250 K to 700 K and simultaneously expanded
what is the molarity of an NaOH solution if 25 mL of this solution reacts exactly with 22.3 mL of .253 molar sulfuric acid?
water with a mass of 0.500 rm kg at 15.0circ rm c is mixed with 0.800 rm kg of water at 35.0circ rm c. what is the
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.407 times
Calculate the standard cell potential for Mg(s) + Fe2+(aq)--->Mg2+ + Fe(s) Express the standard potential numerically in volts.
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