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When 64.5 g of HCl are allowed to react with 17.6 g of O2, 50.4 g of Cl2 are collected. Determine the limiting reactant, theoretical yield of Cl2 and percent yield for the reaction.
A rotary drum filter with a filter area of 200 m^2 and a vacuum pressure of 75 kPa is to be used to remove cells from a fermentation broth.
How much heat in kilojoules is needed to convert 856 g of water 100 degrees celcius to steam at 126 degrees celcius? (the specific heat of steam is 1.99 J/g(C), the heat of vaporization of water is
How many milliliters of O2 are consumed in the complete combustion of a sample of hexane, C6H14, if the reaction produces 789. mL of CO2?
What is the structure of the polymer formed from pentamethylene diamine and sebacoyl chloride with the repeating unit
Which characteristic defines the main difference between a basic buffer system and an acidic buffer system?
17.5 mL of oxygen gas were collected at room temperature 22degree C and 100.2 kPa of atmospheric pressure.
Derive, the Clayperon equation. What is the primary use in phase diagrams? Can you use it to justify the relative slopes of the fusion curve and the vapor pressure curve? Why is the sublimation cur
70.0 L stainless steel container was charged with 3.00 atm of hydrogen gas and 4.00 atm of oxygen gas. A spark ignited the mixture, producing water. What is the pressure in the tank at a constant t
What does it mean to say that the ions of an electrolyte behave independently of one another when the electrolyte is dissolved in water? Is it something about the compound splitting?
Explain why we can't assume that the pressure and the temperature of both gases will remain the same during the entire reaction.
Assuming the solution has a heat capacity of 4.18 J/°C · g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
Calculate the vapor pressure of pure ethanol at 40.0 degrees C asuming that glycerin is a nonvolatile, nonelectrolyte solute in ethanol.
The vapor pressure of dichloromethane, rm CH_2Cl_2, at 0 rm ^{circ}C is 134 rm mmHg. The normal boiling point of dichloromethane is 40. rm ^{circ}C. Calculate its molar heat of vaporization.
What will be the total pressure when the reaction has gone to completion? What will be the total gas pressure when the partial pressure of A(g) has fallen to 8.00x10^2 mmHg?
Sodium nitrate was added to 2.0 L of water at 25 °C to produce a saturated solution. The solution was then heated to 80 °C. Calculate the mass of lead nitrate that had to be added to produce a
Calculate for the combustion of octane by using enthalpies of formation.
A mixture contains 76.5 % NaCl, 6.5 % MgCl_2, and 17.0 % Na_2SO_4 by mass. What is the molarity of rm Cl^- ions in a solution formed by dissolving 7.40 g of the mixture in enough water to form 490.0
How many L of hydrogen are needed to drive to the Grand Canyon, 789 miles away?. The density of hydrogen is 8.99x10 to the negative 5 g/cm cube.
Assuming the composition of coal can be approximated by the formular C135H96O9NS. Calculate the mass of carbon in tonnes of coal
What characteristic properties distinguish the transition elements from the Group IA and-IIA metals?
Pure benezene has melting point of 5.5 degree celsius. change in heat for benzene is 9.87 KJ/Mol. Calculate the number of joules required to melt 43.6g benzene at 5.5 degree celsius.
2SO2 (g) + O2 (g) ↔ 2SO3 (g) A study of this system reveals that there are 4.0E-3 moles of sulfur dioxide gas, and 4.9E-3 moles of oxygen gas present in a 9.0L flask at equilibrium. The equi
Compute the change in temperature when 1.1 g of sodium chloride is dissolved in 300.0 mL of water initially at 26 C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl
What does this tell you about the equilibrium constants for the two reactions of hemoglobin with carbon monoxide and oxygen?