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When 25.0 g of ethanol vapor condenses, 23.6 kJ of heat is released. How much heat is required in kJ to vaporize 262 g of ethanol?
At the equivalence point all carbonate has been converted to bicarbonate NEt ionic equation before the equivalence point: Net ionic equation at the equivalence point
In the process, a photon of wavelength 1.28Ã-10-6 m is emitted. What was the value of the principal quantum number for the higher energy level?
Although the double bond, in total, is stronger than a single bond, the pi bond itself is weaker and can react with electron-deficient species such as a hydrogen ion.
How many molecules of NO2 are produced when 5.38 mol of ammonia is completely reacted?
calculate the equilibrium pressure of N2O4(g) and NO2(g). (c) What percentage (by moles) of the original N2O4(g) is dissociated at the new equilibrium position (total pressure = 1.00 atm)?
Determine the V of a voltaic cell (E°cell) if it is required to do 5.43 × 10¯3 Kilo Joule of work when a charge of 2.50 C is transmitted.
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.72 m AgNO3(aq).
A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of H2O produced is 23.4 grams, what was the approximate mass of the methane in the original mixture?
Describe what happens to the temperature, the volume, and the phase composition ( number of moles of liquid or vapor present) following the removal of 750 J of heat from 1 mol of pure water initially in each of the following states.
Compute the solubility of silver sulfite, Ag 2 SO 3 in units of grams per liter and complete and balance these given redox equations by the half reactions method (the oxidation reaction and the reduction reaction)
What mass of CCl2F2 substance must evaporate in order to freeze 200 of water initially at 15 degrees celsius? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/gK .)
Even with a perfect shima and a higher field of instrument, the spectrum of 2-methyl-2-hexanol is difficult to interpret. Give two different reasons for this difficulty
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