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Ultisols are an important soil order in this group of soils. Describe the typical profile of this soil order paying particular attention to features that directly influence soil and water management . Indicate how these features may influenceland use. 200 word limit
a student prepares benzoic acid by hydrolying 6.47g of methyle benzoate (FW 136.15g/mol) using excess sodium hydroxide. If the student recovers 3.71g
for the reaction N2O4 (g) 2 NO2 (g) a 0.750 L flask contains an equilibrium mixture of 0.971 mol N2O4 and 0.0580 mol NO2 at 25 C. The system is allowed to expand into a larger flask with a total volume of 3.0 L.
Calculate the molalities of the following aqueous solutions. (a) 2.26 M sugar (C12H22O11) solution (density of solution = 1.12 g/mL) m (b) 0.93 M NaOH solution (density of solution = 1.04 g/mL) m (c) 5.64 M NaHCO3 solution (density of solution = 1..
A pressure cooker can be used to cook foods quickly under high pressure. The temperature inside a pressure cooker is 116 degrees celsius. Calculate the vapor pressure of water inside the pressure cooker.
At 373 K, Keq = 2.39 for the following reaction: SO2Cl2(g) = SO2(g) + Cl2(g) In an equilibrium mixture of the three gases, the partial pressures of SO2Cl2 and SO2 are 3.31 atm and 1.59 atm, respectively.
what quantity graphed versus time yields a straight line for a zero-order reaction and what is the equation for the half life time. b) identify quantity versus time for a first order reaction and equation for half life.
Limestone, CaCo3, when subjected to a temperature of 900 degrees Celsius in a kiln, decomposes to calcium oxide and carbon dioxide. How much heat is evolved or absorbed when one gram of limestone decomposes?
Assume that the only amino acid in a particular protein that absorbs at 280 nm is tryptophan, and that this particular protein has 2 moles of tryptophan per mole of protein.
On a certain winter day in Utah, the average atmospheric pressure is 738 torr. What is the molar density (in mol/L) of the air if the temperature is -18 degrees Celsius
A 2.0 mole sample of the compound K2[Pt(CN)4] is dissolved in water. How many total moles of ions will the solution contain?
One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is constant at 77°C. Weights are removed suddenly from the piston to give the following sequence of three pressures
CCl4 lowered the freezing point of the solvent by 5.40 K . Calculate the molar mass of the compound.
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