Calculate molecular weight of unknown substance
Calculate the molecular weight of an unknown substance if 0.2064 g of solid was added to 25.00 ml of cyclohexane and the resultant solution exhibited a freezing point depression of 2.1 degrees celcius.
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A volume of 95.0ml of h2o is initially at room temperature 22.0 C. A chilled steel rod at 2.00 *C.is placed in the water. If the final temperature of the system is 21.2 *C. What is the mass of the steel bar?
Molecular Mass by Freezing point Depression (Preliminary Lab) The following errors occurred when the above experiment was carried out. How would each affect the calculated molecular mass of the solute (too high,too low, no effect)? Explain your an
Briefly describe a corporate merger that you have read about recently or been part of as an employee. What kind of a merger was it? How well is it working from the perspectives of the various stockholders? As far as you are able to determine, what
Calculate the pH after 0.020 mol HCl is added to 1.00 L of each of the four solutions. A mixture containing 0.100 M HONH2 and 0.100 M HONH3Cl
What mass of carbon dioxide (in kg) is produced upon the complete combustion of 18.9L of propane (approximate contents of one 5-gallon tank)? Assume that the density of the liquid propane in the tank is 0.621 . (: Begin by writing a balanced equat
What would be the effect on your calculated molecular weight of p-dichlorobenzene if your lab partner left the stopper of the apparatus while you were weighing the solid. Explain in detail what would happen if this occured & how it would affe
An electrochemical cell consists of a nickel metal electrode immersed in a solution with [Ni2+] = 1.0 M separated by a porous disk from an aluminium metal electrode immersed in a solution with [Al3+] = 1.0 M.
How many grams of dry NH4Cl need to be added to 2.10L of a 0.500 M solution of ammonia, , to prepare a buffer solution that has a of 8.84? Kb for ammonia is 1.8*10^-5.
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