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At 2180C, Kp=1.2 x 10-4 for the equilibrium
NH4HS(s) NH3(g) + H2S(g)
Calculate the equilibrium partial pressure of NH3 and H2S if a sample of NH4HS is placed in a closed vessel and decomposes until equilibrium is reached.
Determine the mass of ice that has melted. Assume that the heat capacity of the cup can be ignored. It takes 334 J to melt 1.00 g of ice at 0 c.
Calculate the initial rate of a first-order reaction if the concentration of reactant is 0.63 M and the half-life is 6.9 s
Calculate the mass of sodium required to produce 80 grams of sodium hydroxide by direct reaction with water: 2Na(s) + 2H2O(l) = 2NaOH(aq) +H2(g) (s) = solid, (l) = liquid, (aq) = water solution aqueous mixture and (g) = gas
Problem- The value for Ksp for copper(I) bromide, CuBr is 4.20 x 10-8. CuBr (MM = 143.45 g/mol). What is the solubility of CuBr in pure water in g/L
a) Explain the mechanism of formation of the products. b) Explain the relative proportion of the products on the basis of their structures.
The root-mean-square (rms) speed of a sample of molecules was found to be 1.8*10^3 m/s at 25.0 degrees C. After heating, the rms speed was found to be 4.6*10^3 m/s. What was the temperature of the sample after heating
Ammonia is a gas whose smell we detect in manure as well as in some cleaning solutions, among other things. If the concentration of this noxious gas can be controlled by regulating the pH of the water because only the non-protonated form is volati..
cloudiness in ice cubes is caused by dissolved air in the water asit freezes. to make ice sculptures that are
Exactly 5.00 days later, the rate of decay was found to be 177 disintegrations per minute. Calculate the half-life, in days, for the decay of this sample.
What are the spectator ions in the solution after the complete neutralization reaction occurs when mixing the weak acid H2CO3 (aq) and the strong base NaOH (aq)?
Provide a structure for the following compound: C9H10O3; IR: 2400-3200, 1700, 1630 cm-1; 1H NMR: ? 1.53 (3H, t, J = 8 Hz); ? 4.32 (2H, q, J = 8 Hz); ? 7.08, ? 8.13 (4H, pair of leaning doublets, J = 10 Hz); ? 10 (1H, broad, disappears with D2O sha..
If the liquid effluent from the press could be fed to the spray dryer without afffecting the tasteof the product, by what percentage would the production rate of instant coffee be increased
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