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What is the concentration (in mg/L ) of dissolved 02 in blood (or water) at this partial pressure and a normal body temperature of 37 C? partial pressure in lungs is 68mm hg. solubility of o2 in water at 37c and 1atm partial pressure is 1.93*10^-3 mol/l
Calculate the concentration of OH- ion remaining in solution. Calculate the concentration of Sr+ ion remaining in solution. Calculate the concentration of NO3- ion remaining in solution.
If 1.87 g of acetic acid(CH3CO2H) reacts with 2.31g of isopentyl alcohol(C5H12O) to give 2.96 gm of isopentyl acetate(C7H14O2)
The half-life for the reactant A in the first order reaction A ® B is 36.2 seconds. What is the rate constant for this reaction at the same temperature
Calculate the standard entropy change for the combustion of ethanol at 25 degrees C. CH3CH2OH(l)+3O2(g)----> 2CO2(g)+3H2O(g). Species S degrees CH3CH2OH(l) 160.7 O2(g) 204.1 CO2 213.7 H2O(g) 188.8
oxygen gas is contained in a 30.0 l tank at a pressure of 4.07 atm. the tank is connected by tubing to a second empty
Calculate pCu2+ at each of the following points in the titration of 50.0 mL of 0.001 M Cu 2+ with 0.001 M EDTA at pH 11.00 in a solution whose NH3 concentration is somehow fixed at 0.100 M: a) 45.0 mL b) 50.0 mL c) 55.0 mL
what mass of magnesium in reaction with an excess of hydrochloric acid is needed to produce 128 ml of hydrogen h2 gas?
calculate the ph that results when 100 mL a liquot of 0.0500 M is added to 400 M of a NH3/NH4+ buffer that is 0.200 M in NH3 and 0.300 M in NH4Cl
The magnesium and calcium ions present in seawater([Mg2+] = 0.059 M and [Ca2+] = 0.011 M) can be separated by selective precipitation with KOH.
A sample of diatomic gas has a density of 0.002061g/ml at 1.8 atm pressure and 25.0°C. identify the gas
Construct a pie molecular orbital system for the nitrate radical (NO3), using the appropiate 2p orbitals. (b) what is the ground electronic state of this molecule?
What is the molality of a solution formed by dissolving 1.70 mol of KCl in 15.0 mol of water (MM of water = 18.02 g/mol),
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