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Using triethylamine with alkyl halides such as iodoethane, 1-bromopropane, 2-bromopropane, describe how the leaving groups affects the rate of an Sn2 reactions Use specific chemical examples to support the conclusion
a 2.9 m solution of methanol ch3oh in water has a density of 0.984 gml. what are the a mass percent b molarity and c
If 0.0598 moles of potassium hydroxide are added to 250 ml of this buffer, what is the pH of the resulting solution? (Assume that the volume change does not change upon adding potassium hydroxide)
when deltaG=0; a system is at equilibrium. Use values for delta H standard and delta S standard to determind the temperature
What is the pOH of a solution that is prepared by mixing 25.0 mL of 0.200 M HNO3 and 25.0 mL of 0.150 M KOH
Why shouldn't you use a sample that has been melted andresolidified to confirm a melting point? e) A sample of an unknown compound has an melting point of145-154C. What conclusions would you draw? What actions would youtake?
A first-order reaction had a rate constant , k , of 0.0123 1/s. If the initial concentration of reactant is 1.25M , what will be the concentration of reactant after 10 minutes?
25 g of a certain metal is heated in boiling water and then poured into 90 mL of water initially at 22.0oC. After the water has resumed a constant temperature.
The pH of the resulting solution is 2.65. Calculate the Ka for the acid.
show example of a standardization of a base naoh using primary standard khp show an
The water solubilities of oxalic acid and sodium oxalate at room temp are 10g/100ml and 3.7g/100ml respectively. Could you prepare oxalic acid by adding HCl to a solution of sodium oxalate, cooling it to room temp, and filtering the resulting mixt..
a cylinder with a moveable piston contains 0.76 of gas and has a volume of 330 .what will its volume be if an
Which os the dollowing statements is correct concerning the equivalence point in a titration of a weak acid (HA) by a strong base? The pH is less than 7 because HA is a weak acid
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