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Calculate the minimum concentration of mg 2+ that must be added to .10 M NaF in order to initiate a precipitate of magnesium flouride. ( Ksp for MgF2= 6.9 x 10-9)
Write equations for the mechanistic steps in the dehydration of cyclohexanol assuming an E1 mechanism.
When 2.9683 g of benzoic acid are burned in a calorimeter, the temperature rises from 21.84 C to 24.67 C. What is the heat capacity of the bomb
The temperature in the laboratory was 23°C and the barometric pressure was 621. mm Hg. You will need to look up vapor pressure of water at that temperature. Find the equivalent mass of this metal.
The inital concentration of HBr in a reaction vessel is 1.2 x 10 ^-3 mol/L. If the vessel is heated to 500 K, WHat is the percent decomposition of HBr and the equilbirum compositions of the mixtures?
a metal sample weighing 45.0 grams and at a temperature of 99.1 degrees celsius was placed in 38.6 grams of water in a
Caculate the wavelength of light( in nanometers) that is absorbed when the electron in a He+ ion goes from the n=2
What happened when 6.0M HCl was added to the contents of the tube in 7a above?
What amount of Potassium Chloride forms when 5.25 litres of Chloride gas at 0.95 atm and 293 K reacts with17.0 g of Potassium
if 5.0 of nitrogen at 12 degree Celsius and 1.30 atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure?
One of the chair conformations of cis-1,3-dimethylcyclohexane is more stable than the other by 23.1 kJ/mol. Use this to estimate the energy cost of a 1,3-diaxial interaction between two methyl groups
175 g of water was heated from 15 degrees to 88 degrees C. How many kilocalories were absorbed by the water?
What is the theoretical yield(in grams) of aspirin ,C9H8O4, when 2.00g of salicylic acid,C7H6O3, is reacted with4.00g of acetic anhydride
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