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Explain which chemical in the Dilantin procedure makes it necessary to grease the joint between the condenser and the reaction flask and Why? What could happen? The chemicals being utilized are benzil, urea, ethanol and 30% NaOH
They are all buffer solutions and would all have the same capacity 2) Of the following solutions, which has the greatest buffering capacity?
Calorimetry is a method used to measure changes in enthalpy, or heat, that occur during chemical processes. Two common calorimeters are constant-pressure calorimeters and constant-volume (or "bomb") calorimeters
The titration of a 0.1000 M HOCl (hypochlorous acid) is done using 0.1003 M NaOH. If a 25.00 mL aliquot of acid is used, determine the volume of NaOH required to reach the equivalence point
gas cylinder a has a volume fo 48.2 l and contains n2gat 8.35 atm at 298 k. gas cylinder b has an unknown volume
50.0000 g of a compound showed that it contained 12.7520 g C,3.2105 g H, and 34.037 g S. The molecular weight of this compound was determined in a seperate expierment and found to be 94.19u.
Calculate the standard enthalpy of formation of solid diboron trioxide (B2O3) using the following thermochemical information
The melting point of the aspirin was found to be 110-115 celsius. Explain why the melting point was low and why the melting range was so wide
For the iodination of acetone, to determine the order with respect to each reactant the method of initial rates was used. Seven reactions were run. Why can the reactions be done in any order
question calculate the density of vanadium which crystallizes in a body centered cubic lattice the length of the edge
In the titration of 50.0 mL of 0.0200 M C6H5COOH(aq) with 0.100 M KOH(aq), what is/are the major species in the solution after the additon of 5.0 mL of NaOH(aq)
A mixture of NO, CO2, and O2 gases has a total pressure of 2.5000 x 10^3 torr. If the partial pressure of NO is 800.0 torr and CO2 is 600.0 torr, what is the partial pressure of O2
Many students find that the absorbance of the DNS reaction with Diet Sprite is lower than the absorbance of water blank. Explain
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