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Standard molar entropies, S^o, in J/Kmol, are given below each reactant and product in the reaction shown below. The standard entropy of reaction, deltaS^o, for this reaction is _________J/K. S(s,rhombic)+O2(g)----SO2(g) 31.8, 205.0, 248.1 respectively
How many grams of acetone are in 1078 mL of a 4.01 M aqueous solution of acetone. The formula for acetone is C3H6O
A 0.0050 molar solution of sugar is separated from pure water by a membrane at 20 C. What is the osmotic pressure?
sodium methoxide ch3ona is a weaker base than buli or nbuli butyllithium. recommend an explanation why it is not
A reaction has an activation energy of 32 kj/mol. If the temperature of the reaction doubles from 45 to 90 degrees by what factor will the ratio of the rate constants, k2/k1,change
One student measure the pH of the following three solution (weak base, conjugate acid and buffer). Using this data, please calculate the pKa and pKb (show calculation).
Glucose is much more soluble in water than 1-hexanol even though both have 6 carbons. Explain
Calculate the molarity, percent composition by weight, and mole fraction of HCL in an aqueous solution 12 M HCl that has a density of 1.20 g/mL.
Explain the problems that would result from the use of the equations in their present form. What modifications would you make to give accurate results when using such an unknown
At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) Kc=53.3 At this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present ..
the molar heat of vaporization at 298 k for diethyl ether is 26.0 kjmol. how much heat would be requiered to vaporize
The pH of .750 M sodium hypochlorite, NaClO, is 10.72. What is the pKb for this base
Write a balanced equation for the reaction of Al(H2O)6^3+ in aqueous KF. Include physical states for each reactant and product
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