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Presume that you have a solution of AsCl(3) with a concentration of 1*10(^-8) M. Presume the density of the solution is 1.00 g/mL. The molar mass of AsCl(3) is 181.28 g. Exchange this concentration to ppb on a mass to mass basis.
Nicotine is a poisonous, addictive compound found in tobacco. A sample of nicotine contains 6.16 mmol C, 8.56 mmol H, and 1.23 mmol N ( mmol = millimol = 10-3 mol).
for a hydrogen atom with its electron in the 3pz orbital what is the longest wavelength of light that can ionize the
a piece of metal with mass of 125grams is placed into a graduatedcylinder that contains 25.0ml of water raising the
Calculate the vapor pressure of water above a solution prepared by dissolving 26.9 g of glycerin (C3H8O3) in 183 g of water at 343 K. Vapor Pressure (torr) at 343 (or 70) is 233.7 torr
Describe the preparation of 1L solution of 0.02M Tris buffer, PH 7.8. Please don't just write numbers.. explain it.
hot methanol and then stored the recrystallization solution until the next lab period. What possible effect on your results due to this experimental error could take place?
suppose that after delivery several drops of the water cling to the inner wall of the pipet because the pipet wall is
When 18.5 mL of propanoic acid and 19.0 mL of n-propanol are mixed together, calculate the volume of water expected if the yield of the ester were 100%
q1. calculate the number of moles of ammonia absorbed by a boric acid solution if 3.25 ml of 0.0025 m h2so4 were needed
Calculate (a) the mole fraction of the solute, (b) the number of moles of solute in the solution, and (c) the molecular mass of the solute.
the vapor pressure of pure water at 50.0 degc is 92.5 mm hg. calculate the ideal partial pressure of water at this
The experimentally measured density under the same conditions is 3.10 g/L. Account for the discrepancy between your calculated value and the experimental result.
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