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Question: You fill a 500 ml container with 100 ml of water and shut the lid. the water is at 25 degrees celcius. How many moles of water vapor will be in the "empty" 400 ml portion of the container?
One sample had a mass of 25 grams. The other had a mass of 50 grams. Would the same number of particles be ejected from each sample in the first hour?
The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
Naturally occurring iodine has an atomic mass of 126.9045. A 12.3849- sample of iodine is accidentally contaminated with 1.00070 of , a synthetic radioisotope of iodine used in the treatment of certain diseases of the thyroid gland.
Ribonuclease P proteins RPP21 and RPP29 bind one another during complex assembly. Thermodynamic measurements reveal that ΔH° = -66.3 kJ/mol and ΔS° = -73.2 J/mole*K at 40°C. What is the equilibrium constant for the binding reaction at 40°C?
aniline is being reacted with dimedone with an mgso4 catalyst. how does the lewis acid play a role in the mechanism? if
how much 0.500 M Au(NO3)3 solution would you need to prepare to accomplish this? 3) If the price of the base metal is negligible, and the price of gold is $ 1791.05/oz. ( as of the date of this publication), what is the value of the medallion?
Decribe how to prepare 2.0 liters of a .20 M NaOH solution from 50%. (w/w) Naoh solution that has a density of 1.53 g/mL, and doing all measurements by volume, not mass.
a solution is prepared by condensing 4.00l of a gas measured at 27degc and 746mmhg pressure into 580g of benzene.
If the laser is pointed toward a pinhole with a diameter of 1.0 mm, how many photons will travel through the pinhole per second? Assume that the light intensity is equally distributed throughout the entire cross-sectional area of the beam. (1 W = ..
a 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25degc and the volume of the balloon is 12.2 l.
Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3
C6H6(Benzene) boils @ 8o.1C, melts @ 5.5C, Density=.88gm/ml, its heat of fusion is 10.0 kjoules per mole -Calculate volume occupied by 1 gigamole of liquid benzene @25C
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