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A stream of air 25 degrees Celsius and 1 atm is laden with particulate matter (unit density spheres) of only two sizes: 1 micrometer and 5 micrometer. The stream flows through a pipe at an average velocity of 20 m/s. The pipe exhausts into a water mist scrubber where the water droplets average 100 micrometer in diameter. Based only on a comparison of their impaction numbers, what will be the ratio of particles collected (5 micrometer to 1 micrometer)? Show work.
26.0cm of a solution containinh 1.86g of X2CO3 in 250 reacted completely with 27.0cm of solution contain 3.65g of HCL per dm,calculate the molar mass of X2CO3 and relative atomic mass of X, and identify X.
A 25ml sample of 0.200 M HCO2H(aq) is titrated with 0.100 M KOH (aq). What is the pH at the equivalence point. (Ka of HCO2H = 1.8 x 10^-4)
At 2000°C the equilibrium constant for the reaction is Kc = 2.4 103. 2 NO(g) N2(g) + O2(g) If the initial concentration of NO is 0.100 M, what are the equilibrium concentrations of NO, N2, and O2? A) [O2] _ M B) [N2] _ M C) [NO] _ M
What gas do you think forms when you add sulfuric acid to the solide mixture and solution. show with an equation
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures, including hydrogen atoms, for the formula.
The wavelengths of the sodium doublet can be accurately measured despite the fact that they are very short. The IUPAC standard for the meter is, in fact, based on the wavelength of a particular line in the emission spectrum of the element krypton
For the following reaction at 298.2 K, 2 CO(g) + O2(g) ---> 2 CO2(g) calculate deltaS(universe) given deltaS(system) = -173.1 J/K and deltaH?(system) = -566.0 kJ.
A 3.963-g sample of coal was burned in a tube furnace and the liberated SO2 was collected in dilute H2O2, which converts the SO2 to sulfuric acid:
What is the hybridization scheme for the central atom in the following?
A culture of yeast gown under anaerobic conditions is exposed to oxygen, resulting in a dramatic decrease in glucose consumption by the cells.
The pH of a 0.010 mol L-1 solution of a weak monoprotic acid is 2.09 at 25oC. What is the pKa for this acid
what will be the final temperature of the solution in the calorimeter? The heat of solution,delta H solution, ofCaCl2of is -82.8kj/mole.
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