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An electron in the hydrogen atom makes a transition from an energy state of principal quantum number ni to the n2 state. If the photon emitted has a wavelength of 487 nm, what is the value of ni.
The proposed mechanism for a reaction is 1. ClO-(aq) + H2O(l) => HClO(aq) + OH-(aq) SLOW 2. I-(aq) + HClO(aq) => HIO(aq) + Cl-(aq) FAST 3. OH-(aq) + HIO(aq) => H2O(l) + IO-(aq) FAST Which of the following would be a rate law for the reaction
Nitrogen oxides undergo many interesting reactions in the environment and in industry. Given the following information, calculate capital deltaH for the overall equation
an experiment shows that a 249 -ml gas sample has a mass of 0.433 g at a pressure of 750 mm hg and a temperature of
Compute pH and [OH-] for each of the following solutions. (a) 8.1×10-2M Na2CO3, (b) 0.15M NaCN
Calculate the percent yield of benzophenone to triphenylmethyl reaction. started with 4.09g of benzophenone and ended up with .682g triphenylmethyl can anyone help me convert these into moles and calculate the yield
Calculate the wavelength of the radiation released when an electron moves from n=5 to n=2. The answer i got was 152 nm but apparently thats wrong.
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively. If 7.50 mol benzene is mixed with 6.64 mol toluene
Considering the balanced chemical equation at the beginning of Section 4.2, why is it incorrect to say that if we burn 2 kg of octane, we would get 16 kg of CO2 as a product
500.0 mL of 0.170M NaOH is added to 585 mL of 0.200 M weak acid (Ka=2.66*10^-5) what is the pH of the resulting buffer. HA(aq) + OH(aq) ---> H20(l) + A^- (aq)
A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of copper in a 1.0 M copper(I) ion solution, connected by a salt bridge. Calculate the standard potential for t..
can you write the oxidation reduction reaction for a solution of potassium dichromate added to an acidified solution
At a pressure of 1 atmosphere and a temperature of 25 °C, 500 cm3 of the gas HX has a mass of 0.400 g. Calculate the value of the relative atomic mass of X and hence identify element X.
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