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Molecule and ideal gas law
1. A cylinder contains a mixture of hydrogen and chlorine molecules. Compare without doing any calculations:
a) the relative mass of the moleculesb) the temperature of each gasc) the average kinetic energy of the moleculesd) the average speed of the molecules
2. Find the number of atoms ina) 52.5g of calcium metalb) 1.5 mol of carbonc) 1.5 mol of carbon dioxide
3. Find the volume of a gas at -30oC and 0.75 atm if it occupies a volume of 255L at 40.0oC and 1.25 atm.
Compute mole fraction of caffeine(C 8 H 10 N 4 O 2 ), the molarity of the solution
A system conducts 238 cal of heat to the surroundings while delivering 331 cal of work. what is the change in internal energy of the system (in cal).
What mass of Au is produced when 18.6 ampere of current are passed through a gold solution for 29.0 minutes.
Molar Mass of Sulfur based on molality, What would the molar mass of sulfur be based on the following data and information?
System conducts 1.30x10^2 cal heat to srroundings while delivering 316 cal work. What is the change in internal energy of the system (in Cal).
A saline solution contains 171 mEq/L each of Na+ and Cl-. how many moles of each of Na+ and Cl- are in 1.50 L of the saline solution.
The density of hydrogen gas in a flask is 0.147 g/L at 305 K. what is the pressure inside the flask? Calculate the density in G/L of CH4(g) at 75 Celsius and 2.1 atm (R= .08206 L*atm/mol*K).
a gas company in massachusetts charges $2.80 for 15ft^3 of natural gas at 20 degrees C and 1 atm. Calculate the cost of heating 200mL of water from 20 degrees C to 100 degrees C.
Find the lowest temperature of vaporization and the highest temperature when there is liquid left over and Determine the range of temperatures which could be used for this process.
how many Liters of water can be made from 34 grams of oxygen gas and 6 grams of hydrogen gas at STP? what is the limiting reactant for this reaction?
A solution is prepared by adding some solid CaF2 to water and allowing the solid to come to equilibrium with the solution. The equilibrium constant for the reaction below is Kc = 3.9x10-11.
The air track carts in the figure are sliding to the right at 1.0 meter per second. Find the speed of the carts.
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