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In the reaction AH3 +H+ = AH4+, AH3 has a dipole moment and AH4+ does not. Predict the number of lone pairs that may exist on A in AH3. Hint: Find more than a single number of lone pairs that work.
A 2.914-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 Celsius in a crucible until a constant mass is reached.
Calculate Ecell for a galvanic cell constructed from a beaker of 0.0025M HCl with a standard hydrogen electrode at 1atm of pressure
How much heat must be supplied at 1000 degrees C if 1000 J of useful work is to be done by the engine?
General Chemistry: Energy, Volume, Mass, Molarity, and Moles, Benzene is an organic solvent with the formula C6H6. It boils at 80.1 degrees celcius and melts at 5.5 degrees Celsius. Benzene's density is 0.88gm/ml; its heat of vaporization is 30.0 ..
In solution in 6EB in Atkins 9th edition is not clear to me. The equation for the location of partile in the box is different from the one that is in the book.
In this exercise it was also assumed that the calorimeter was a perfect insulator and that no heat was lost to the surroundings.
Calculate the de Broglie wavelength of the bullet traveling at 1289 miles per hour. Physical constants can be found here.
What is the energy difference between the two energy levels involved in the emission that results in this spectral line and calculate the frequency (Hz) and wavelength (nm) of the emitted photon when an electron drops from the n=4 to the n=2 level i..
If you were to carry out saponification of ethyl tridecanoate, would you expect the product to generate foam/froth when mixed and agitated with water? Explain.
the periodic table when given a set of molecules, how can you decide which is most polar and has the most ionic character?
you have 19.16 g of CH4 and 22.13 g of O2. How many grams of CO2 would be generated, CH4 + 2 O2 --> CO2 +2 H2O
what quantity of heat is required to vaporize 107g of benzene, c6h6, at its boiling point, 80.1c? the heat of vaporization is +30.8kj/mol.
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