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How much heat is released when 105g of steam at 100.0 degrees celsius is cooled to ice at -15.0 degrees celsius? The enthalpy of vap of water is 40.67kJ/mol, the enthalpy of fusion for water is 6.01kJ/mol, the molar heat capacity of liquid water is 75.4J/mol, and the molar heat capacity of ice is 36.4J/(mol C)
when 45.0 grams of C2H6 are completely combusted, 60 grams of water are produced. Is the ethane pure?
N and H undergo a combination reaction under appropriate conditions, to yield ammonia: N2 (g) +3H2 (g) →2NH3 (g), determine how much sample of N2 in grams requires 3.0 g of H2 for complete reaction.
a cup of hot steaming coffee sits on the desk at 80 degrees celsius and is composed of mostly water with some things
Define dipole moment. Distinguish between polar and nonpolar bonds.Give an example of each
If this energy were used to vaporize water at 100.0 degrees, how much water (in liters) could be vaporized.
how many different alkenes will be produced when each of the following substrates is treated with a strong base? a) 1-Chloropentane
the frost melts due to the sun heating the surface of the car above the melting point B) the frost evaporates due to the sun heating the solid c) the frost cycles as does the saturation level of moisture in the winter air does from night to day Th..
The structure of HxWO3 could contain H+ ions or OH- ions. Which do you think is more likely? Why?
When adjusted for any changes in and with temperature, the standard free energy change at 2400 is equal to . Calculate the equilibrium constant at 2400.
how many grams of dry need to be added to 2.30 of a 0.400 solution of ammonia to prepare a buffer solution that has a
A rigid tank contains 20 lbm of air at 20 psia and 70F. More air is added until the pressure and temperature rise to 35 psia and 90F
Identify one conjugate acid base pair in the reaction of HBA with H2O to produce BA? and H3O+.
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