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Presume that a pollutant enters the environment at a steady rate R as well as that, once there, its concentration decays by a first-order reaction. At long times the concentration of the pollutant turn into constant at some nonzero value. Develop an expression for this steady state concentration in terms of R.
5L of CO2 at 500 torr and 3L of CH4 at 400 torr are put into a 10L container. what is the pressure exerted by the gasses in the container.
kilimanjaro in tanzania is the tallest peak in africa 19340 ft.. on a particular day the barometric pressure at the top
What volume of .250 M NaOH is required to neutralize a 10mL sample of .750 M HCl.
A solution is made by combining 15.0mL of 16.5M acetic acid with 5.52g of sodium acetate and diluting to a volume of 1.50L Calculate the pH
What range of magnetic field strength would be required to cover the mass range between 16 and 625, for singly charged ions, if the accelerating voltage is held constant?
Methylhydrazine, CH6N2, is commonly utilized as a liquid rocket fuel. The heat of combustion of Methylhydrazine is (-1.30E3 kJ/mol). Explain how much heat is released when 205.9 g of Methylhydrazine is burned
what are amino-acid trna synthetase enzymes and why are they important in the biology of cells? how many different ones
A solution contains 1.35 g of Ca(OH)2 in 875 mL of solution. Find the normality of the solution.
a sample of 0.600 moles of metal M reacts completely with excess of flourine to form 46.8g of MF2. How many moles of F are present in sample of MF2 that forms?
We were given three ways to make an ammonia/ammonium buffer solution. One way was to add solid NH4Cl to aqueous NH3. This way proved to be the best buffer when HCl or NaOH were added. Why is this. Why does the solid/aqueous buffer work the best.
What volume of 0.0500 M NaOH must be added to remove the first acidic hydrogen from each aspartic acid molecule (i.e., to reach the first equivalence point)
What pH will would measure for these solutions immediately. What would be the pH after the solutions equilibrate with the atmosphere
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