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The vapour density (hydrogen =1) of a mixture consisting of No2 and n2o4 is 38.3 at 26.7 regree C . Calculate the number of moles of No2 in 100g of the mixture.
A solution composed of 50% ethanol (EtOH), 10% methanol (MeOH), and 40% water (H2O) is fed at the rate of 100 kg/hr into a separator that produces one stream
Assume that you have carried out a radical chlorination reaction on (R)-2- chloropentane and have isolated (in low yield) 2,4-dichloropentane.
A scuba diver with a lung capacity of 5.3L inhales a lungful of air at a depth of 47m and a pressure of 5.7atm.
Calculate the theoretical and percent yields for aspirin in this reaction and write the balanced formula and net ionic equations for the reaction.
Calculate the temperature of boiling water at an elevation of 6000ft (2000m) given that the atmospheric pressure is 0.8atm. Assume delta H_vap is independent of T.
A metallic object to be plated in copper is placed in a solution of CuSO4. What mass of copper will be deposited on the object if a current of 0.22 amps flows through the cell for 1.5 hours
what is the chloride concentration ppt (W/V) of you sample? (include a standard deviation in your result) The standard deviation for the electronic balance used to weigh the AgCl is 0.15 mg.
The rate constant of a first order reaction is 4.45 x 10^-2 s-1 at 35 degrees C. What is the rate constant at 77 degrees C if the activation energy for the reaction is 60.2 kJ/mol
what is the change in enthalpy for 2.854 moles of the liquid?
If someone puts .600 mL of a 3.00% hydrogen peroxide solution on a cut, how many moles of hydrogen peroxide are used. Assume the density of the solution is equal to the density of water.
Why does anions only move towards anode and cations only towards cathode?
Sodium carbonate is a reagent that may be utilized to standardize acids. In such standardization it was found that a 0.498-g sample of sodium carbonate needed 23.5mL of a sulfuric acid solution to reach the end point for the reaction.
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