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a piece of paper is spotted with a solution containing a mixture of 2 components, A and B. the chemical affinity of A for the stationary phase is less than that of B, and the chemical affinity of A for the mobile phase is greater than a of B. which susbstance will have traveled father at the completion of the chomatography experiment? which substance will have the larger Rf value? explain
A large gas flask is found to weigh 143.567 g. it is then filled with gas to a pressure of 735 torr at 31 C and found to weigh 1067.9 g (the density of water is 31 C is 0.997 g/mL). Assuming that the ideal gas equation applies, calculate the molar..
Predict what you would expect to observe when each of the following substances is mixed with NaI/acetone. Would you expect a difference in their relative rates of reaction
calculate the molarity of acid (or base) remaining in solution when 20mL of 0.400M HNO3 is added to 16.3mL of 0.258M NaOH?
Nitrogen dioxide decomposes according to the reaction. kp=4.48X10^-13 at a given temperature. If 0.6 atm of NO2 is added to a container and allowed to come to equilibrium. What are the equilibrium partial pressures of NO and O2
The Born-Haber process is used to determine the enthalpy of formation of common salts as it is the hardest process to measure. For KBr the enthalpy of formation follows this equation
What is the equilibrium constant expression for the following reaction- C5H5NH(aq) + H2O(l) ? C5H5NH2+(aq) + OH-(aq)
Molecular beacons are nucleic acid strands that form hairpin loops. The stem region hybridizes to close the loop and the binding energy is ΔG = -22kJ/mole at 37°C.
this is a post lab question: you did not correct for the barometric pressure for the vapor pressure of water. what happens to your calculations
Identify an alkane with the molecular formula c5h12 that forms only one monochlorinated product when heated with Cl2
Sulfur has two solid forms - a (or rhombic) and b (or monoclinic). The standard enthalpies of combustion, in which the product is SO2, are -296.53 kJ/mol for S(s,a) and -296.86 kJ/mol for S(s,b). Find the standard reaction enthalpy for the process..
Calculate the molality of a hydrochloric acid solution that is 26.4% by mass and has a density of 1.19 g mL^-1
excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.28. What is the Ksp of the salt at 22 °C?
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