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Hydrazine, H2NNH2, is used as a rocket fuel.
H2NNH2 (l) + O2 (g) ? N2 (g) + 2H2O (g)
Explain what volume of N2 will be produced at 850oC and 0.23atm for each 15.0g of hydrazine that reacts? Define what volume of steam will be produced?
A sample of compound B having an unknown concentration is measured to have an absorbance of 0.90 in a 1.00 cm path length cell at 500 nm. What is the concentration of B in this sample, assuming Beer's Law holds
The products of our reaction (1- and 2-heptene) can form peroxides upon standing in air for a prolonged period of time
Predict the coordination number in a NiS crystal. The ionic radii for Ni+2 and S-2 are 0.069 and 0.184nm, respectively.
If 393.5 kJ of heat is released per mole of graphite and T increases 2.613 K, what is the heat capacity of the bomb calorimeter
Small air bubbles in the salt bridge may not be a problem. How can the presence of air bubbles in the salt bridge alter the effectiveness of this salt bridge
q1. which type of intermolecular attractive force operates between a. all molecules b. polar molecules c the hydrogen
If the equilibrium concentration of Fe3+, SCN-, and FeSCN2+ are 0.00140 M, 0.00140 M, and 0.000414 M, respectively, calculate the equilibrium constant for Fe3+ + SCN- FeSCN2+.
A large scale polycondensation reaction of a diol and a diacid is performed at 200 C. At various intervals small samples are removed, introduced into tared conical flasks, quenched in a dri ice/acetone, weighed, dissolved and titrated with a stand..
While using the Half Volume method, your solution was dark pink (you overshot the endpoint) and you added the unreacted acid to this solution
A buffer contains 0.40M base, B, and 0.25M of its conjugate acid, BH+, and has a pH = 8.88. What is the pH after 0.0020mol of HCl is added to 0.25L of this solution?
Galvanized nails are iron nails that have been plated with zinc toprevent rusting. The relevant reaction is For a large batch of nails, a manufacturer needs to plate a totalzinc mass of 1.70 on the surface to get adequatecoverage.
The first ionization energy of bismuth is Ei1 = +703 kJ / mol. What is the longest possible wavelength of light that could ionize an atom of bismuth?
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