A glass bulb weighs 25 g when evacuated and 125 g when filled with water at 25 . A hydrocarbon gas at 25 and 100 mm of Hg pressure is introduced into the evacuated bulb. The weight of the bulb with the gas is 25.01613 g. Calculate the molecular weight of the gas.
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A glass bulb weighs 25 g when evacuated and 125 g when filled with water at...
A flask weighs 50.000 g empty and E g when filled with a gas vapor at 100C and 758 mm Hg. Taking the volume of the flask to be 225.0 mL, calculate the molar mass of the gas.
A 125 mL glass bulb contains 0.138 g sample of propane, C3H8, at 22C. What is the pressure of this gas? [R = 0.0821 L atm mol-1 K-1] a. 0.61 atm b. 0.28 atm c. 0.045 atm d. 0.0061 atm e. 0.000045 atm Acetylene can be made by reacting calcium carbide with water: CaC2(s) + 2 H2O(l)→Ca(OH)2(s) + C2H2(g) What is the maximum volume of acetylene that can be obtained from 225 g of calcium carbide at 23C and 645...
2. A cylindrical tank weighs 75 N when empty. When filled with water the total weight is 1600 N. Determine the height of the tank if the diameter is 50 cm. 3. The mass of the golf ball is 46 g and its mean diameter is 42 mm. Determine the density and specific gravity of the material used for golf ball.
what is the denisty in g/L STP if the gas in a 1.00L bulb weighs 0.672g of 25 celsius and 733.4 mmhg pressure? please show the work.
please do all. thanks. 1. a. A weather balloon is filled to the volume of 105 L on a day when the temperature is 25°C. If no gases escaped, what would be the volume of the weather balloon after it rises to an altitude where the temperature is -9°C? Volume = L? b A 203-mL sample of a gas exerts a pressure of 2.55 atm at 19.5°C. What volume would it occupy at 1.85 atm and 190.°C? Volume = ?mL...
The vapor pressure of water is 23.76 mm Hg at 25°C. How many grams of sucrose, C12H22011, a nonvolatile, nonelectrolyte (MW = 342.3 g/mol), must be added to 191.5 grams of water to reduce the vapor pressure to 23.29 mm Hg? water = H,0 = 18.02 g/mol. g sucrose The common laboratory solvent benzene is often used to purify substances dissolved in it. The vapor pressure of benzene, C6H6, is 73.03 mm Hg at 25°C. In a laboratory experiment, students...
QUESTION 3 A can weighs 71.5 N when empty, 577 N when filled with water at 4 degrees Celsius and 1025 N when filled with oil. calculate the (14 maeks) 1. specific gravity 2.density 3. specific weight of oil
A glass having a diameter of 50 mm is filled with water to the evel shown in (Figure 1). An ice cube with 25-mm sides is placed into the glass. Take pu 1000 kg/m3 and Pice 920 kg/m3 Part A Determine the new height h of the water surface. Express your answer to three significant figures and include the appropriate units. hValue Units Submit Request Answer Part B What will the water level h be when the ice cube completely...
Consider the following equilibrium system: PCl5(g) -->PCl3(g) + Cl2(g) A 10.00 L evacuated flask is filled with 0.4334 mol PCl5(g) at 297.3 K. The temperature is then raised to 510.0 K, where the decomposition of PCl5 gas takes place to an appreciable extent. When equilibrium is established, the total pressure in the flask is 2.665 atm. What is the value of the equilbrium constant in terms of concentrations, Kc, at 510.0 K?
The vapor pressure of water is 23.76 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that dissolves in water is urea. Calculate the vapor pressure of the solution at 25 °C when 6.846 grams of urea, CH4N2O (60.10 g/mol), are dissolved in 207.3 grams of water. water = H2O = 18.02 g/mol. VP(solution) = mm Hg