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You have a 550mL tank of gas with a pressure of 1.56 atm at 24 degrees C. You thought the gas was pure carbon monoxide ,CO, but you later found out it was contaminated by small quantities of gaseous CO2 and O2. Analysis shows that the tank pressure is 1.34 atm (at 24 degrees C) if the CO2 is removed. Another experiment shows that 0.0870g of O2 can be removed Chemically. What are the masses of CO and CO2 in the tank and what are the partial pressures of each of the three gases at 24C?
Calculate the increase in entropy when 3.50 mol of monatomic perfect gas with Cp = 5/2 R is heated from 250 K to 700 K and simultaneously expand from 20.0 L to 60.0 L.
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.041 moles of sulfuric acid is mixed with water to make 169 mililiter of solution, what is the molarity of H+? Answer in units of M.
Determine how many moles each of Na+ and Cl- are in 0.700 L of the saline solution (A physiological saline solution contains 167 mEq/L each of Na+ and Cl-.)?
Acid Mixture Problem, From a full 50-liter container of a 40% concentration of acid, x liters is removed and replaced with a 100% acid.
A gas occupies 0.500L at 1.20 atm. what pressure is necessary to change the volume to 0.700L?
The specific heat cacpacity of solid copper metal is 0.385/Jg-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0 0C to 77.5 0C
Calculate the pH of each of the following solutions. (a) 0.115 M HONH2 (Kb = 1.1 10-8)
how many grams of lead (II) chloride is produced when 13.87 g lead (II) nitrate combines with hydrochloric acid to produce lead (II) chloride and nitric acid?
Deuterium oxide (D2O, where D is deuterium, the hydrogen-2 isotope) has an ion-product constant, Kw, of 8.9 x 10^-16 at 20 *C (degrees Celsius). Calculate [D+] and [OD-] for pure (neutral) D2O at this temperature.
A 100.0-g sample of water at 27.0oC is poured into a 75.0-g sample of water at 89.0oC. What will be the final temperature of the water?
A swimming pool measures 25 meters wide by 145 meters long by 1 meters deep. How many gallons of water are required to fill the pool?
Sketch Flow diagram and explain the extraction process - What is the purpose of extracting the organic layer with water in the first extraction step?
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