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ammonia is a gas for which reliable analytical methods are available to explain concentration in other gases to measure ow in a 15 inch schedule
a tank contains 50 gal of a solution of nacl in water 20 wt to wash the tank we supply fresh water at 10 galmin and drain the tank at the constant
a 100 gal tank contains 10 lb of water the tank is filled by two inlet streams one of pure water and one of pure ethanol the flow rate of both
the atomic weight is the weight of an atom of a chemical element for instance the atomic weight of oxygen is 159994 and the atomic weight of
aluminium metal is frequently used as a reducing agent for the extraction of metals such as chromium manganese etc explain whyans aluminium is an
aldehyde is a carbonyl compound in which one valency of carbonyl carbon is satisfied by hydrogen atom and other by a alkyl
1 for what fraction of annual co2 emissions from fossil fuel burning are automobiles responsible2 a 1000-kg car travels 16 times 104 kmyr what is the
the fresh feed to an ammonia production process contains nitrogen n2 and hydrogen h2 in stoichiometric proportion along with an inert gas i
p-block group elements the p block elements are belong to group 13 to 18the
determine five chemical reactions you observe in your daily life observe the reaction carefully present the change in the condition of the
a mixture of air and methanol vapour is fed to a converter in which the following reactions take placech oh o hcho h o 3 2 2 2 1 reg 3 2 ch oh reg
a calculate the energy required to heat 1kg of co2 from 400oc to 600oc at a constant pressure of 1atm using-i the mean heat capacity data given
blending is an important unit operation in the chemical and process industries it is employed in a wide variety of industries including the
an adiabatic air compressor is to be powered by a direct-coupled adiabatic steam turbine that is also driving a generator steam enters the turbine at
a carnot heat engine gets heat at 800 k and rejects the waste heat to the environment at 300 k the whole work output of the heat engine is used to
a 05 m3 rigid tank is filled with saturated liquid water at 200oc a valve at the bottom of the tank is opened and liquid is withdrawn from the tank
a piston device haves 08 kg of an ideal gas initially at 200 kpa and 30oc the gas is then compressed slowly in a polytropic process during which pv13
describe why shielding is more effective by electrons in a shell of lower principle quantum number than by electrons having the similar principle
why is the total energy of a many-electron atom not equivalent to the sum of the orbital energies for every
a using lewis structures to describe your reasoning describe why the following ions have different bond angles clo2- and no2-b given that the spatial
use the vsepr model to predict approximate molecular geometries and electron-domain forthe following species a xef2 b nh3cl c
analysis show that nickel oxide has formulla ni 98 o 100 what fraction of the of nickel exist as ni3 amp ni 2 ans ni29591 and
why does p-methoxybenzyl bromide reacts with ethanol faster than p-nitrobenzylbromide solution because o-ch3 is electron donating group while no2 is
e1cb means elimination unimolecular of the conjugate base this type elimination proceeds through the carbanion mechanisman carbon compound acting as