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Write equations for the mechanism for saponification using salicylic acid, begin with nucleophillic attack of hydroxide ion on the carbony group of the ester. In lab we did the experiment with benzoic acid and methanol.
A certain reaction has a ?H of -213 KJ/mol and a ?S of -27.0 J/mol.K at 625°C. Determine the free energy change in the reaction and whether the reaction is spontaneous under these conditions.
Using the lewis structure predict the geometrical structures of the following ions and state the hybridization of the central atom.
Calculate the mass of water formed by the complete reaction of 935 g of propane (C3H8) with excess oxygen. (Write a balanced equation)
The triprotic acid H3A has ionization constants of Ka1 = 7.5× 10-2, Ka2 = 7.8× 10-9, and Ka3 = 6.9× 10-12. Calculate the following values for a 0.0580 M solution of NaH2A Calculate the following values for a 0.0580 M solution of Na2HA.
The rate at which a compound travels through a particular GC system depends on numerous factors. List the five factors and number them one through five.
A sample of helium gas has a volume of 8.23 L at 258.8 K and 2.049 atm. How many helium molecules does it contain
You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0.100 M benzoic acid (pKa=4.20) and 0.120 M sodium benzoate. How much of each solution should be mixed to prepare this fuffer
the density of milk is 1.04 g/ml, how many milligrams of milk are in 0.50 qt of milk? (1L=1.057 qt, 1000g=1Kg, 1000ml=1L, 1000mg=1g)
Find concentration of each ion present in the solution formed by mixing: 44.0 mL of 0.150M Na2SO4 and 25.0 mL of 0.200M KCl.
what will the maximum temperature reached by the resulting solution? [Assume that there is no heat loss to the container, that the specific heat of the final solution is 4.18 J/g*C, and the density of the final solution is that of water.]
a. what is the ph of rainwater containing no buffering other than from water itself if the current concentration of
What is true about ideal gas particles? a. Particles interact via the Lennard-Jones potential b. Particle volume is approximated as a sphere with diameter b
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