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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Lifespan psychologists are unlikely to investigate both changes as well as consistencies that exist in different individuals'
The purpose is to examine the psychological factors affecting how teenagers in an impoverished urban area spend their time outside of school using:
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Provide five (5) reasons why working from a person centred, strengths-based positive framework, and providing positive lifestyle strategies can reduce
Sahir is the most active student in your kindergarten class. He tends to be very disruptive when the teacher you work with is teaching the class,
Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
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