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If 0.66 mole of substance has a mass of 99 g, what is the molecular mass of the substance.
What would happen if the kinetic energy of the reactants were not enough to provide the needed activation energy
Write a chemical equation for the reaction corresponding to the standard enthalpy of formation of N2O5 (g) and determine its value from the following thermochemical data
There is less waste. II. Harsh reagents are avoided. III. It uses recombinant technology. IV. It needs intense purification.
Consider the following reaction at constant P. Use the information here to determine the value of Delta-Ssurr at 398 K. Predict whether or not this reaction will be spontaneous at this temperature.
Draw a tetra-peptide that FPHD at pH 2.0. Clearly indicate with a circle what groups would be charged if the pH was changed to 12.0. Draw a box around the peptide bonds
How many grams of TiCl4 are needed for complete reaction with 125L of H2 at 440Celsius and 800 mm Hg pressure. 2TiCl4+H2=2TiCl3+2HCl
Which of the following species is present in the greatest concentration in a 0.100 M H2SO4 solution in H2O
calculate the energy levels of the pi-network in octatetaene c8h10 using the particle in the box model. to calculate
Determine the empirical and molecular formulas of anthraquinone.
a volume 505 mL of air on a cold winter day at -15 degrees celcius is breathed into the lungs, where body temperature is 37 degrees celcius
A solution is made by dissolving 15.3g of HCl in enough water to make 4.70x10^2 mL of solution. Calculate the pH of the solution at 25 degree C.
If a 0.20 M acid with a smaller Ka than benzoic were titrated with the same NaOH, how would the equivalence point pH and volume compare to the equivalence point pH and volume of benzoic acid
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