How much of the substance is in a sample
A certain substance has a molar enthalpy of vaporization of 31.6 kJ/mol. How much of the substance is in a sample that requires 57.0 kJ to vaporize?
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Calculate the average kinetic energies of the CH4 and N2 molecules at 286 K and 556 K?
A gear reduction system consists of three gears A, B, and C. Gear A starts from rest at time t=0 and rotates clockwise with constant angular acceleration.
Determine the mass of carbon dioxide produced when .85 grams of butane reacts with oxygen according to the following equation : 2C4 H10 + 13O2 ->8CO2 + 10H2O.
a rigid tank of 0.03(cubic meters) volume contains a mixture of liquid water and water vapor at 80kPa. The mass of the mixture in the tank is 12kg. Calculate the heat added and the quality of the mixture when the pressure inside the tank is raised
How much heat is released when 105 g of steam at 100 Co is cooled to ice at -15Co? the enthalpy of vaporization of water is 40.67 KJ/mol, the enthalpy of fusion for water is 6.01KJ/mol, the molar heat capacity of liquid water is 75.4 J/(mol.C0) an
A compound is found to have a molar mass of 598 g/mol. If 35.8 mg of the compound is dissolved in enough water to make 175 mL of solution at 25°C, what is the osmotic pressure of the resulting solution?
The solubility of CaSO4 in pure water at 0oC is 1.20 gram(s) per liter. What is the value of the solubility product?
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A victim was stabbed in the left side of the neck in a fight and sustained a small superficial stab wound of the skin and jugular vein.
A person is known to suffer coronary arteriosclerosis and suddenly complained of chest pain; the hospital diagnosis was acute myocardial infarction
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