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1. Explain what volume of oxygen gas, at 533 degrees Celsius and 750torr, could be formed by the decomposition of 38.1g of potassium chlorate? The other product is potassium chloride.
2. Explain an automobile tire at 32.0 psi at 75.0 degrees F is driven on trip. At the end of the trip the pressure is 35.0 psi. Explain what is the temperature of the tire in degrees Celsius?
3. Compute the height in meters of a column of liquids ethanol (density=0.7893 g/cm3) needed to exert the same pressure as 760mmHg (d=13.60g/cm3)
4. If 250. L of nitrogen reacts with 582L of hydrogen by the reaction: N2 (g) + 3H2 (g) --> 2NH3 (g), explain how much nitrogen is unreacted? All gases are at the same temperature and pressure.
5. A 34.8mL sample of an unknown, water-insoluble gas was collected over water at 22.6 degrees Celsius and a barometric pressure of 0.895 atm. While the gas was dried and chilled, it formed 114.6mg of liquid. Explain what was the molar mass of this substance? Vapor pressure of water at 22.6 degrees Celsius is 20.mmHg
For the following reaction, 5.07 grams of carbon disulfide are mixed with excess chlorine gas. The reaction yields 9.09 grams of carbon tetrachloride.
What is the freezing point of an aqueous 2.65 m calcium chloride (CaCl2) solution? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
What is the molar mass of a compound that diffuses 2.75 times more slowly than argon at the same temperature and pressure?
burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 4.701 °C. What is the heat capacity (calorimeter constant) of the calorimeter?
Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2 g of ammonia are reacted with 787.3 g of carbon dioxide. Which of the two reactants is a limiting reactant.
if you have 380.00 ml of water at 25.00 degrees celcius.and add 130 ml of water at 95.00 degrees celcius, what is the final temperature of the mixture?
Given a buret filled with .11 M acetic acid and a second buret filled with .15 sodium acetate, how many milliliters of each solution should be mixed together to produce 18.0 mL of a solution with a pH of 4.79
How many liters of softened water, containing a sodium concentration of 4.0×10-2% sodium by mass, have to be consumed to exceed the FDA recommendation
How many kilograms of CaH2 are needed to fill a 134 L tank with compressed H2 gas at 154 atm pressure and 22 degrees celsius?
Some water was added to the initial reaction mixture of 5mL water, 5.55g sodium bromide and 5 mL butanol in the procedure that was perfromed to obtain 1-bromobutane from 1-butanol.
Calculate the equilibrium constant for the following reaction: (Ka of HCOOH = 1.7 x 10^-4) HCOOH (aq) + OH-(aq) HCOO-(aq) + H2O(l)
the equilibrium constant kc for the reaction has the valueof 4.00 at 500k. if a mixture of 1.00 mol co and 1.00 mol
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