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A student prepares a solution by dissolving 42.0 g of substance A in 0.600 kg of CHCl33fo. Substance A does not form ions in solution (remains intact) and has a molecular mass of 154g/mol. What is the freezing point depression of the solution (T) if CHCl has a k = 4.68 C/m? Show the calculation.
by examining two different isotopes one can determine specific features about the molecule and its absorption spectrum.
After the recrystallization, the student weighs the pure benzoic acid to find there are now only 79 mg. What is this student's percent recovery of benzoic acid?
The triple point of water is a fixed quantity, used to define other triple point values and the kelvin unit of temperature."
When 1-methylcyclopentene is reacted with H2 with a Pt catalyst, what will be the nature of the resulting compound?
Identify the orbitals to which a 4d electron may make an emission transition in the hydrogen atom and determine the dissociation energy of the molecule
Why does K + N2 yield no reaction. could some one please explain what factors contribute to no reaction
Explain what is the percent yield of C2H5Cl(g) if 2.00 moles of C2H4(g) react with excess hydrogen chloride gas to produce 1.50 moles of C2H5Cl(g). C2H4(g) + HCl(g) ----> C2H5Cl(g)
Calculate the expected pH of a solution at the equivalence point using [NaOH] = 0.0997M and [acetic acid] = 0.1048M. The Ka for acetic acid is 1.8 x 10-5
Calculate the ratio of the hydronium ion in acid rain to that in normal rain.
write a balance chemical equation for the combustion of 1 mol glycerin, and calculate delta H for this reaction at 298K if burning 1.24g of glycerin has a delta E of -54.6 kj
How much heat is absorbed or released in the reaction of 20.0 g of NH3 with sufficient oxygen to produce NO(g) and H2O(l)? 4 NH3(g) + 5 O2(g) g? 4 NO(g) + 6 H2O(l) ?H = -1168 kJ A
if an analyte exhibits both absorbance and fluorescence at a given excitation wavelength what will doubling the
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