Calculate the composition in mole fraction of the gas
A equimolar mixture of H2 and D2 effuses through an orifice at a certain temperature. Calculate the composition in mole fraction of the gas that passes through the orifice?
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(a) cool to 30.0°C, all the heat released goes to warm the 10,000 ft3 (2.83 x 105 L) of air in the house, originally at 10.0°C. To what final temperature would the air be heated? The specific heat of air is 1.004 J/g°C, and its density
The specific heat of compound A is 0.50 cal/g degrees Celsius. What amount of heat has been added to 100.0 g of compound A if the temperature changes by 5.0 degrees Celsius?
How many additional milliliters of titrant are needed to reach the first equivalence point of quinidine dihydrochloride?
500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid are left over after the reaction is complete?
AlBr3 is sold as a solution in CH2Br2. This is a rather exotic solvent and somewhat difficult to work with as well, because of its relatively high boiling point. CH2Cl2 is much more convenient to use in organic synthesis. Assuming AlBr3 is soluble
Determine both the empirical formula and the molecular formula of the compound given that the molar mass is 237 g/mol.
Oxygen makes up 46.7 % by mass of the Earth's crust. How many grams of oxygen are present if a sample of the Earth's crust has a mass of 335 g .
When 415 J of heat is added to the gas, it expands and does 106 J of work on the surroundings. What is the value of Delta H for this process? What is the value of Delta E for this process?
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