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Evaluate the average kinetic and potential energies, <Ekinetic> and <Epotential> , for the ground state (n=0) of the harmonic oscillator by carrying out the appropriate integration.
what is the functional groups and molecular formula of aspartame, the NH2 is below the 3rd C and the CH2 is below the 5th C
A piece of metal with a mass of 169 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 38 mL. What is the density of the metal?
Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you do the following? (a) Decrease the volume to one third the original volume while holding the temperature constant.
Determine the theoretical yield and percent yield if 21.8g of K2CO3 is produced by reacting 27.9g KO2 with 29.0L of CO2 (one mole of CO2 occupies 22.4L). The GFW (KO2)= 71.10 , GFW (K2CO3)= 138.21 , GMW (CO2)= 44.01
A gas sample containing 1.64 mol at 25°C exerts a pressure of 389 torr. Some gas is added to the same container, and the temperature is increased to 50.°C.
Why should a distilling flask be filled to not more than two-thirds of its capacity at the beginning of a distillation procedure?
Calculate the pH of a buffer solution prepared by dissolving 0.200 moles of benzoic acid (C6H5COOH) and 0.450 moles of sodium benzoate (C6H5COONa in enough water to make 1.00 L of solution
calculate the pH of a sodium cyanide solution that is 0.37M NaCN. The Ka for hydrocyanic acid HCN is 4.00E-10.
redox reaction NO2- is oxidized to NO3 and Ag is reduced to Ag. Complete and balance the equation for this reaction in basic solution
Hom much .200M KOH is required to completely neutralize
How many milliliters of 0.105 M HCl are needed to titrate each of the following solutions to the equivalence point:-- 45.0 mL of 0.0950 M NaOH
Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(l) → Ca(OH)2(aq) + 2 H2(g)
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