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To what general class of mechanisms does the attack of bromide ion, Br-, on the cyclic bromonium ion 50 (bridged bomonium intermediate of E-stilbene) belong? Does this ring-opening step follow first or second-order kinetics?
Calculate the pH of a solution with the following: 5.12 moles of HCl are placed in a 3.00 L of water 4) Given the acid pKa is 4.76. Calculate the pH of a 0.35M acetic acid solution:
what mass of nacl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 degc? the freezing point
What does the number 42 in whatman filter paper #42 mean? What does it indicate about the paper's properties? (what does it have to do with aluminum?)
What is the chemical formula of the salt produced by neutralization of sodium hydroxide with sulfuric acid
A sample of Oxygen is collected in a 206 mL container over water at 15C, and the barometer reads 793 torr. What volume would the dry gas occupy at 704 torr and 15C? Water's partial pressure at 15C is 12.8 torr. Answer in units of mL.
Nitrogen and hydrogen combine at high temperature, in the prescence of a catalyst, to produce ammonia N2(g)+3H2(g)>>>>>>2NH3(g)
Calculate how much work is needed to perform the compression in the following scenario
the volume of an ideal gas is held constant. determine the ratio p2p1 of the final pressure to the initial pressure
the air feels cool because heat is required to evaporate the water from our skin. How much heat is required to evaporate 20.6 g of water? The enthalpy of vaporization of water is 44.0 kJ/mol.
to what temperature will a 50.0 g piece of glass raise if it absorbs 5275 joules of heat and its specific heat capacity
3 atoms of carbon combine with 4 molecules of hydrogen to produce methane (CH4). 7 molecules of hydrogen and 2 molecules of nitrogen gases react to produce ammonia
Describe the preparation of 200 mL of 1.00% (w/v) aqueous CuSO4, from a 0.218 M CuSO4 solution.
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