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Assuming Kf= 478Kg/s^2, calculate and compare the fraction of molecules in the first excited vibrational state at 1000K for a) ^1H^35Cl b) ^1H^37Cl c) ^2H^35Cl and d) ^2H^37Cl.
a photon of ultraviolent lights possesses enough energy to mutate a strand of human dna. what is the energy of a single uv photon and a mole of uv photons having a wavelength of 25 nm
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6 (g)+ H2 (g) -> 2CH4
How many moles of hydronium ion are neutralized by one teaspoonful of Extra strength Maalox plus?
How many orbitals correspond to each of the following designations?
Combustion of 2.80 g of this compound produced 5.59 g of CO2 and 2.29 g of H2O. What is the empirical formula of the unknown compound?
Ammonia can be oxidized in oxygen as shown: 4 NH3(g) + 3 O2(g) 2 N2(g) + 6 H2O(g). When 0.791 mol of NH3 and 0.814 mol of O2 are placed in a 1.00 L container at a certain temperature,
Hydrolysis of an ester using sodium hydroxide (2M) is usually a fast reaction. Why would it take almost 40 minutes to complete? It is imperative to consider the location of each reagent within the vial.
how many grams of sulfur are needed to react completely with 246 g of mercury to form HgS
Briefly explain why hydrogen atoms in methane are all in equivalent positions? B. Briefly explain why there are no structural isomers of propane (c3h8)
at 84 degrees C the total vapor pressure of a solution contains 1.2 moles A and 2.3 moles B is 331 mmHg. Upon the addition of another mole of B to the solution, the vapor pressure increasing to 347mmHg.
How many grams of potassium accetate must be added to 2.5 L of .250 M acetic acid
calculate the ph at the equivalence point for the titration of 0.10 M NH3 with 0.10 M Hcl. the Kb for NH3 is 1.8 10^-5.
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