Why is it necessary to add ammonia solution to precipitate
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 solution to precipitate the product?
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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 to attract other bees to join the attack.
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
How long does it take restaurant to rotate through four radians? How far does a person sitting by the window move in 100 minutes if radius of restaurant is 21 meters?
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 of 3.6 kJ/mol for a gauche butane interaction.
Determine the pressure required to melt ice into the liquid water at 253K. The densities of liquid water and ice are 1.000 and 0.915 gmcm-3, respectively, and the heat of fusion Δfus Ho = 6,007 J mol-1.
A and B form and ideal solution. The vapor pressure of pure A is zero and the vapor pressure of pure B at 25oC is 100.00 torr. The vapor pressure at 25oC of a solution consisting of 1.00 g of A and 10.00 g of B is 80.0 torr.
Calculate the coefficients of the Antoine equation based off of experimental data in the form of a vapor pressure and the corresponding temperature.
When the student's experimentally determined that 0.0201 moles of sulphur combined with 0.0399 moles of sodium, calculate the empirical formula of the compound produced in this exercise?
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