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Liberate the free 4-nitroniline by slowly adding concentrated ammonia solution with stirring until the mixture is basic. Write down the appropriate equation and why is it necessary to add ammonia s
Determine the energy difference between the most stable conformation of cis-1,3-dimethylcyclohexane and the least stable chair conformation of trans-1,4-dimethylcyclohexane by using a value o
A lead atom has a mass of 3.4 x 10 ^-22 gram. Determine the numbers of lead atoms are in a cube of lead that has a volume of 2.00 cm3 if the density of lead is 11.3 g/cm3
Isopentylacetate, C7H14O2, the compound responsible for the scent of ripe bananas, can be formed commercially. Interestingly, bees release about 1.40μg of this compound when they sting, in order
Find out the concentration of the final solution when a 24.7 mL, 1.66 MKMnO4 solution is mixed with the 16.7 mL of 0.755 M KMnO4 solution.
Calculate the maximum number of electrons that can be freed by a burst of light whose total energy is 1.00μJ? Explain in detail.
If the sodium is irradiated with light of 439 nm, determine the maximum possible kinetic energy of the emitted electrons? Discuss in detail.
Find out the mass of sodium sulphate is required to prepare the 1.26 liters of such a solution when a solution is to be prepared with a sodium ion concentration of 0.542 mol/L.
Determine the total pressure and the partial pressure of the final mixture when an 11L vessel contains 1.0 molN2 and 2.0 mols H2 at 298.15 K initially. H2 reacts withN2 to form NH3.
At 25.0C determine the entropy of fusion of a compound given that its enthalpy of fusion is having 32 kJ/mol at its melting point of 146C and the molar heat capacities of the liquid and solid forms
Calculate the reaction that took place in the separatory funnel among the diphenylamine which is dissolved in the ether and excess 5% HCL. Show the phase of all products. The drawing is two benzene
Determine the mass of sodium phosphate is required to prepare 1.40 liters of such a solution? A solution is to be prepared with a sodium ion concentration of 0.591 mol/L.
Suppose if you mix 2.4g of A with 15.3 g of B, then calculate the final weight of AB and the weights of A and B left in the solution.
In the Sahara Desert the incident sunlight at ground level having density of power is 1.44 kWm-2 in July at noon. Calculate the maximum rate of loss of water from a pond in an oasis of area 12m2. (
Atmosphere which is having the temperature of -20°C independent of altitude (h = 29141 ft). Suppose that air at the sea level is 80%N2 and 20% O2.
Calculate the rate of consumption of H2 related to the rate of consumption of N2? Calculate the rate of formation of NH3 related to the rate of consumption of N2?
If you wanted to separate amixture of a basic and a neutral compound, Explain how would you alter the procedure.
Explain why is the upper layer always removed through the top of the separatory funnel rather than allowing it to drain through the bottom?
If a separatory funnel has the water and chloroform, which layer is the water layer and which layer is the chloroform layer. Describe the emulsion. Calculate one of the main causes of emulsions in org
Explain how to make 125 mL of a 0.250 M arginine buffer, pH 12.0.Suppose you will start with the 1.00 M solution of fully protonated arginine and 2.00 M NaOH. Be sure to show all computation.
Determine the isothermal compressibility and an expansion coefficient of a Van der Waals gas. Show using Euler's chain relation KT R=α(Vm -b) and where the T and m are held co
Analysis and Separation of the aqueous phase shows that it now contains the 12 mg of the organic compound. Determine the partition coefficient for the compound.
Determine the lowest mass isobar for which there exist three stable isotopes? Determine the element, with the lowest atomic number, which has no stable isotopes?
The density of the liquid is 809 g/L and that of the gas is 4.566g/L at the boiling point. Determine the numbers of liters of liquid nitrogen are formed when 895.0 L of nitrogen gas is liquefied at
The reaction is a second order in the C4H6. Butadiene reacts with itself to form a dimer with the formula C8H12. If the rate at constant at a particular temperature is 4x10^-2 and the initial conce