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Calculate the molar concentration of a potassium chloride solution if 2.4 liters contains 2.00 moles of KCl. Calculate the molar concentration of 15 frams of KCl in 1.5 liters of solution.
If the standard deviation of your pipet is 0.018 mL, what is the chloride concentration ppt (W/V) of you sample?
Consider these three reactions, and their corresponding values of ?Gº: 1/2 N2 + O2 NO2 ?Gº = 100 kJ 2 NO2 2 NO + O2 ?Gº = 200 kJ NOBr NO + 1/2 Br2 ?Gº = 300 kJ Calculate the value of ?Gº for 1/2 N2 + 1/2 O2 + 1/2 Br2 NOBr.
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of BrO3- is doubled and that of Br- is doubled
When Lewis and Clark came through this area in the early 1800s they were forced to portage around the "Great Falls of the Missouri".
Consider a perfect gas with Cvm = 28.0 J/mol-K trapped in a piston/cylinder arrangement with cross-section area of 250.0 cm^2. The gas expands irreversibly against a fixed external pressure of 1.0 atm adiabatically
how many milliliters of a .250 m sulfuric acid solution would be required to completely react with 2.398 grams of solid
What is the average speed of the sprinter if A sprinter set a high school record in track and field, running 200. M in 22.0s .express your answer in kilometers per hour?
Gas Nitrous Oxide (N20) is used as an anesthetic and in aerosol cans to produce whipping cream. It is a potent greenhouse gas and decomposes slowly to N2 and O2.
A 2.30-g sample of a large biomolecule was dissolved in 22.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule.
a mass of mercury occupies .750l. what volume would an equal mass of ethanol occupy if mercurys density is 13.546 gml
a balloon is filled to a volume of 7.0 102 ml at a temperature of 39.0degc. the balloon is then cooled at constant
A trayed column is used to recover acrylic acid and acetic acid from a dilute gas stream by absorption in water. At the same vapor concentration, acrylic acid is about two times as soluble as acetic acid in water
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