How many grams of dry nh4cl need
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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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.
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.
This mixture is also heated to 350°C. After equilibrium is reached, will there be any difference in the composition of the mixtures in the two flasks? yes no Explain.
calculate the total volume of gases that can be collected at 1.2 atm and 293 k from 260 grams of nitroglycerin 4 C3H5(NO3)3
If 0.0050 mol of methyl acetate is dissolved in 10.0 grams of tert-butanol, what is the expected freezing point depression in celcius degrees?
if the ethyl alcohol at 35 degree rise through 8.36 cm in a capillary tube of radius 0.20 mm , What is surface tension.
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