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Problem- The time required for complete burnout of coal(assume pure carbon) when O2 diffusion is the RDS (1 atm, D = 10^-5 m^2/s, 200K, 0.1mm particles whose density is 1500 kg/m^3) exceeds 1 second). Is the statement true or false?
Give reasons or calculations to sustain your answer.
When a mixture of 12.5g of acetylene (C2H2) and 12.5g of oxygen (O2) is ignited, the resultant combustion reaction produces CO2 and H2O
What is the volume in mL of 0.845 M NaOH(aq) needed to reach the equivalence (stoichiometric) point in the titration
When 45.0 grams of a certain metal at 70 degrees celsius is added to 24.0 grams of water at 10.0 degrees celsius in an insulated container, the final temperature is 20.0 degrees celsius. What is the specific heat capacity of the metal
given the reactionso2g 12o2g harr so3goccurring at 800 k and 1atm. the initial mixture contains 1 mol of so2 and 0.5
a metal sulfide, M2(CO3)3, has a Ksp of 4.15 x 10^-42. What is the molar solubility of this sulfide in water? Assume the sulfide dissolves ideally (ignore hydrolysis effects).
The nitrogen in a 4-tablet sample that weighed a total of 7.50 g was converted to ammonia by Kjeldahl digestion, followed by distillation into 100.0 mL of 0.1750 M HCl. The analysis was completed by titrating the excess acid with 11.37 mL of 0.108..
In preparation of esters given in an experiment, the reaction product was extracted with 5% sodium bicarbonate solution (NaHCO3) in the isolation step. How? What gas was evolved during this washing step?
When is the standard enthalpy of a reaction for which the equilibrium constant is doubled,when the temperature is increased by 10 K at 298 K
nh3 is kept in a cylinder with a movable piston at the temperature of 25 degree celcius and the pressure of 2.50 atm
How many total stereoisomers are possible for 4-chloro-3-hexanol? Given that opening of the epoxide ring in this reaction is stereoselective, provide the names of the only two isomeric products formed using IUPAC guidelines.
if the pressure during the reaction stays CONSTAT (put the valune can change, like in a piston balloon which of these reactions do work on the surroundings
Poly (ethylene terephthalate), which is the commonly used polyester Dacron, can be formed by an acid-catalyzed esterification between ethylene glycol (HOCH,CH,OH) and terephthalic acid (HOOC-C6H4-COOH, para isomer). Show the polymerization reactio..
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