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The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67°C into 1.00 g of steam at 100°C?
a 40.0 ml sample of oxygen is collected by water displacement at 24.0 degrees celcius. what volume would the dry gas
a compound has the empirical formula ch2o. when 0.0866g is dissolved in 1.000g of ether the solutions boiling point is
Current annual energy consumption in the United States is 99.3 quads. Assume that all this energy is to be generated by burning CH4(g) in the form of natural gas
When solid iodine is introduced into an evacuated vessel at 25 degrees Celcius, some of the iodine sublimes. Predict how the enthalpy, entropy, and free energy change in the system
A 220 kiln is used for vitrifying ceramics. It is currently operating at 955, and the pressure is 0.9750 . How many moles of air molecules are within the confines of the kiln
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure that could be abbreviated as XY2Z2.
An equilibrium mixture of PCl5,PCl3 and Cl2 at a certain temperature contains 8.3×10^?3M PCl5 , 1.5×10^?2M PCl3 and 3.0×10^?2M Cl2.
What is osmium's molar capacity if the two substances reach thermal equilibrium at 100 degrees Celsius? Osmium, the densest known metal, has a density
What is the IUPAC name of the most minor product formed when 3-methyl-2-hexanol undergoes elimination with sulfuric acid
In an exothermic reaction, which rate increases more when the temperature is raised, the forward or reverse reaction
For each of the following experimental or calculations errors, tell of the calculated value of R, writte if would be too high, too low or unchanged.
Calculate the height of a column of liquid benzene (d= 0.879 g/cm3), in meters, required to exert a pressure of 0.970 atm.
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