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If you wanted to prepare a solution of CO in water at 25 degrees celsius in which the CO concentration was 2.0 mM, what pressure of CO would you need to use?
If every tablet in the problem abouveweights 650 mg. How many kilograms of excipient (lactose/talcum powder/filler) are needed to complete the whole batch?
Explain the difference between accuracy and precision, as it pertains to experimental data. The best way to do so is to define
Kim Pupil performed this experiment and prepared a plot of lnP versus 1/T with a temperature scale ranging from 1/273 K to 1/353K.
The wavelength corresponding to the threshold frequency to tungsten surface is 230nm. Calculate the kinetic energy of the photoelectron ejected from the surface of tungsten metal.
An unknown compound burned with a yellow, nonsmoky flame and was found to be insoluble in 5% sodium hydroxide solution but soluble in concentrated sulfuric acid.
How is a "charge" different from a mortgage?
What observed rotation is expected when a (7.91x10^-1) M solution of (R)-2-butanol (mw = 74.12 g/mol) is mixed with an equal volume of a 0.740 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 ..
When square brackets are placed around the formula for a substance, such as [NaOH], it indicates that we are working with the percent-by-mass
If a mixture of gases contained 78% nitrogen at a pressure of and 22% carbon dioxide at 345 torr, what is the total pressure of the system?
calculate the ph of buffer solution made from .20 M HC2H3O2 and .050 M C2H3O2 that has an acid dissociation constant for HC2H3O2 of 1.8*10-5.
A 50.0-L stainless steel container was charged with 3.00 atm of hydrogen gas and 4.00 atm of oxygen gas. A spark ignited the mixture, producing water.
Maleic acid contains 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen by mass. A 0.030-mol sample of this compound weighs 2.61 g.
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