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When a volcano erupts, 175g of steam at 100°C is released. How many kilojoules are lost when the steam condenses, cools, freezes, and cools to -5°C.
(Cice= 2.04 J/g°C, Cwater= 4.184 J/g°C, Csteam= 2.09 J/g°C)
A plane is flying level with a speed of 320 ms/ and an unknown altitude above ground level and drops an uguided bomb over a flat bombing range. if the bomb travels 2000m downrange, what altitude did the pilot release the bomb.
produces carbon dioxide and water. After 5.6 of ethanol (density = 0.789 ) was allowed to burn in the presence of 12.5 of oxygen gas, 3.10 of water (density = 1.00 ) was collected. Determine the theoretical yield of H2O and the percent yield for th..
calculate the freezing point of a solution made from 22.0 g of octane c8h18 dissolved in 148.0.g of benzene. benzene
a gas sample has an original volume of 760 ml when collected at 720 mm and 25degc. what will be the volume of the gas
Considering that half-life of MED is 1 min, what would be the decomposition times if (a) CSTR and (b) PFR is used. Show calculations.
Calculate the vapor pressure of the solver over the solution at 25 degrees C. The vapor pressire of pure water at 25 degrees C is 23.8 mm Hg
A typical buffer utilized by biochemists is called Tris, which can be depicting as R3N. A buffer that is makes by mixing 500mL of 0.050 M R3N with 500mL of 0.050 M R3NHCl at 25 degrees Celsius has a pH of 8.40. If this similar buffer is placed in ..
A zero-order reaction has a constant rate of 3.50×10-4 M/rm s. If after 65.0 seconds the concentration has dropped to 1.00×10-2 M, what was the initial concentration?
Calculate the molarity and mole fraction of acetone in a 1.25 m solution of acetone (CH3COCH3) in ethanol (C2H5OH). (Density of acetone = 0.788 g/cm3; density of ethanol = 0.789 g/cm3.) Assume that the volumes of acetone and ethanol add. molarity ..
Problem- Which molecule would have the lowest imax spectroscopy 1-butene 2, 4-pentadiene, 1, 3, 5,-cyclohexatriene, 1,3-cyclopentdiene
if airbus decides to hedge using money market instruments,what action does airbus need to take?what would be the guaranteed euro proceeds from the American sale in this case?
Calculate the turnover number (k3 or k cat) for bovine catalase. Assume that a 1 x10 ^-8 M solution of catalase causes the breakdown of 0.4 M hydrogen peroxide per second at the fastest
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