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What wavelength is expected for light composed of photons produced by an n=3 to n=1 transition in a hydrogen atom?
What is the resultant pressure if 3.7 mol of ideal gas at 273 K and 1.97atm in a closed container of constant volume is heated to 446 K.
Give an example of a biological reaction in which water participates as a reactant and a reaction in which it participates as a product.
Why is the first step in an electrophilic aromatic bromination reaction so much more endothermic than the first step in an electrophilic addition to an alkene
Name two important forms of injury from electricity and how to avoid them
The concentration of O2 in water required to support aerobic aquatic life is 4.0 mg L-1. What is the partial pressure in torr of O2 in the atmosphere that corresponds to this concentration. The Henry's law constant for O2 in water is 3.27 x 107 to..
the MWP for a tank is 207.0 bar at 20 degrees C. If the tank is filled at 200.0 bar at 20 degrees C, what is the maximum pressure the tank achieves if left in the sun on a boat, if the tank temperature reaches 35.0 degrees C?
What is the theoretical yield of PH3, when 150 g of Na3P is mixed with 250 grams of water? If the actual yield is 30 g, what is the % yield?
Using standard enthalpies of formation, calculate the standard enthalpies of the following reaction: 4HCl(g)+O2(g) -------> 2Cl2(g) + 2H2O(g)
Cyclic Alkyne reaction with KMnO4 and O3, Molecule 1: 5 carbon ring, carbon 1 has a carbon attached which also is triple bonded to another carbon (this end carbon just has a H attached.)
Draw all of the resonance structure of SCP-.write formal charges on All atoms. point out which one has most likely resonance
Calculate the pH after adding 0, 10.0, 25.0 and 30.0 mL of titrant in the titration of 50.0 mL of 0.100M NaOH with HCl 0.200 M.
A particular reactant decomposes with a half-life of 171 s when its initial concentration is 0.329 M. The same reactant decomposes with a half-life of 245 s when its initial concentration is 0.230 M. determine the reaction order. calculate the rat..
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