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Which of the followling molecules would have resonance structures? Select all that apply. (You should draw all resonance structures for the molecule(s). Answer a. NI3 b. O3 c. CCl4 d. CH3NH2 e. NO3-
a gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures: CO2, 265 mmHg; Ar, 121 mmHg; and )2, 168 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
What is the buffer strength (ie the total of Ha and A). The concentration of weak base in the buffer on 0.126 M The concentration of weak acid in the buffer is 0.04906
Calculate the pH at equivalence point when 40.0 ml of 0.50 M aniline is titrated with 30.0 ml of 0.67 M HBr. For aniline Kb=3.8x10exp
How many times faster will the reaction occur at 43^circ {rm C} than at 0 ^circ {rm C}? How many times faster will the reaction occur at 43^circ {rm C} than at 0 ^circ {rm C}?
In chemical reactions the total number of moles of products must be the same as the total number of moles of reactants.
the activation energy for the decompostion of HI to H2 and I2 is 186 kJ/mol. The rate constant at 555 K is 3.2 x 10^-7 L/mol*s.
Why is the catalyst Copper Chloride faster at the decomposition of hydrogen peroxide than Postassium Iodide and Lead Oxide
How much energy in joules is required to heat 295 mL of coffee from 25.0 0C to 62.0 0C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 rm J/(gc. K) .
Could fusing two stable nuclei that have mass numbers in the vicinity of 100 be an energy-releasing process. What is meant by enriched uranium
What determines whether a group on a benzene ring will be activating or deactivating and ortho para
Nitrogen and Oxygen form an extensive series of oxides of general formual NxOy; at least 7 are known. One of them is a blue solid that comes apart reversibly in the gas phase. It contains 36.84% N and the rest is Oxygen. What is the empirical form..
Calculate the work done (in joules) if the gas expands against a constant pressure of 2.1atm. Enter your answer in scientific notation.
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