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Rank the compounds in each of the following groups in order of decreasing rate of solvolysis in aqueous acetone. C6H11BR, C6H11Cl and C7H13Cl (the last is tertiary, the others are secondary).
identify organic compounds in medications. determine the structure of one active component and identify three functional groups on each molecule.
an experiment was performed to determine the amount of pyridoxine (B6) in a vitamin tablet. A tablet weighing 0.4006g was dissolved in 25mL of solution
Define and describe teh properties of Bronsed conjugate acid base pairs and how they relate to the pH scale and calculate the pH or pOH values for a given ion concentration.
Solid sodium peroxide (Na2O2) reacts with liquid water yielding aqueous sodium hydroxide and oxygen gas. How much heat is released
A sample of compact bone has a mass of 5.80 g and a volume of 3.00 cm3. What is the density of the sample?
A buffer solutions contains .120 M acetic acid and 0.150 M sodium acetate. How many moles of acetic acid and of sodium acetate are present in 50.0 ml of solution ? = 0.0075 moles.
A flask contains a mixture of two ideal gases, A and B. Show graphically how the total pressure of the system depends on the amount of A present
Which properties are the same for both reactions and which are different? the number of atoms of each element, the state of the methane molecules, the enthalpy change of the reaction, the state of the carbon atoms.
Assuming that the peaks are Gaussian, calculate the % resolution, i.e. calculate the area under the first peak which lies to the left of half way between the two peaks.
Draw a free energy profile for a reaction S to P that proceeds through a single transition state with Delta G knot equal to +2.8 kcal/mol and delta G double dagger equal to 14 kcal per mole. Label the appropiate difference.
Construct a Born-Haber cycle for the formation of the hypothetical compound NaCl2, where to sodium ion has a 2+ charge
Calculate the heat released when 2.58 L of Cl2(g) with a density of 1.88 g/L reacts with an excess of sodium metal at 25°C and 1 atm to form sodium chloride.
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