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Changing the temperature of water and measuring the amount of gas produced.
The heat capacity of a bomb calorimeter is found to be 5.68 kJ/oC. When a 1.652 g sample of glucose is burned in the calorimeter, the temperature of the calorimeter increases from 24.56 oC to 29.10 oC
Carbon disulfide is a colorless liquid. When pure, it is nearly odorless, but the commercial product smells vile. Calculate the standard enthalpy change for this reaction using standard enthalpies of
In an experiment, 201 mL of wet H2 is collected over water at 27 oC and a barometric pressure of 733 torr. The vapor pressure of water at 27 oC is 26.74 torr. The partial pressure of hydrogen in thi
One hundred grams of water is saturated with NH4Cl at 50°C. According to Table G, if the temperature is lowered to 10°C, what is the total amount of NH4Cl that will precipitate?
Calculate the mole fractions of CO and CO2 and what is the value of equilibrium constant Kp if the total pressure is 11 atm?
Write a program to compute the diameter in centimeters of a steel rod, an aluminum rod, and a copper rod which can withstand a particular compression load.
In the organic chem, we prepared soap by using tallow and sodium hydroxide. After keep checking the regular 6 weeks of PH, my ph did not get to 7 scale but remained till 10.
At 50 degrees C calculate the vapor pressure of a solution prepared by dissolving 0.030 moles of glucose, C6H12O6 in 100. g of water. The vapor pressure of water at 50 degrees C is 345 Torr.
A gas is enclosed in a cylinder fitted with a piston. The volume of the gas is 2.00 L at 1.00 atm pressure. The piston is moved to increase the volume to 6.00 L.
A sealed balloon is filled with 1.70 L of helium at 23°C and 1.00 atm. The balloon rises to a point in the atmosphere where the pressure is 250. torr and the temperature is -28°C. What is th
What is the acid-ionization constant, Ka, for the ionization of acetic acid, shown in the reaction CH3COOH(aq) + H2O(l) mc029-1.jpg H3O+(aq) + CH3COOH-(aq)?
A reaction vessel contains these compounds at equilibrium. What will happen of the volume of the container is reduced by 50% at constant temperature
What is the pressure in torrs of the volume of a sample of a gas is 7.6 liters when 0.46 moles of gas are at 54 degrees celsius?
15.14 mL of standardized Na2S2O3 was required to reach the endpoint. How many moles of IO3- were present in your samples?
How many grams of methane [CH49g] must be combusted to heat 1.00 kg of water from 24.0 to 93.0, assuming H2O(l) as a product and 100% efficiency in heat transfer?
How much of the other reagent is left over after the reaction is complete?
The reaction system POCL3(g) POCL(g)+CL2(g) is at equilibrium. which of the following statements describes the behavior of the system if the partial pressure of chlorine is reduced by 50%?
Consider the following equation that describes the complete combustion of propane. The bond energies are: C-H 416 kJ/mol; C-C 356 kJ/mol; O=O 498 kJ/mol; C=O 803 kJ/mol; H-O 467 kJ/mol.
one mole of methane has a mass of 16.0 grams. How many grams of methane are needed to make 1.0 L of a 0.20 molar solution?
A silver chloride precipitate weighing 0.2255 grams was obtained from 0.3448 grams of a soluble salt mixture. Calculate the percentage of chloride in the original sample.
The volume of the mixture is 1.7 L, and its total pressure is 0.998 atm. Determine the partial pressure of the hydrogen gas in this mixture
Consider 4.40L of a gas at 365 mm Hg and 20 degrees celcius. Express the pressure numerically in millimeters of mercury.
What volume would a 0.0236-mole sample of helium gas would occupy at a temperature of 24°C and a pressure of 0.750 atm?
A nugget of gold with a mass of 521g is added to 50.0mL of water. The water level rises to a volume of 77.0mL. What is the density of the gold?