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A base-base extraction was done using 0.4g of a mixed compound at ratio 1:2:1 of benzoic acid, 2-napthol, napthalene that was dissolved in diethyl ether. NaHCO3 was added, shaken, and then separated off using a funnel and saved. Cold NaOH was added, shaken, funneled off, and then saved. The remaining organic layer was then funneled off, saved, and dryed. The NaHCO3 and NaOH fractions were made acidic with additions of HCl, then vacuum dried via buchner funnel. Neutral fraction was dryed via reduced pressure. All samples were then weighed for recovery and melting points were measured. What modifications if any would have to be done to the procedure if the experiment were repeated using dichloromethane instead of diethylether? Which parts would be affected and why?
Calculate the equilibrium partial pressures of the products and reactants if PH2O= .442 atm and PCO = 5.000 atm at the start of the reaction. Assume the carbon is in excess.
It is isolated from an opium. a .684 g sample of opium is found to require 8.90 mL of a 1.14x10^-2 M solution of sulfuric acid for neutralization. Assuming that morphine is the only acid or base present in opium, calculate the percent morphine in ..
to determine the molecular formula of a compound.a compound of p and f was analyzed as follows heating 0.2324 g of the
the vapor pressure of pure acetone propanone is 266 torr. when a non-volatile solute is added the vapor pressure of
What the size of the reaction quotient indicates regarding the extent of the forward reaction - the equilibrium concentration of sulphur gas if 0.070 mol of hydrogen sulphide gas is initially placed in the vessel.
Explain how do you find the melting point of molecules. For instance to sort LiF, BeO, BN from highest melting point to lowest melting point.
In an alkalinity titration of a 100.0-mL sample of water from a hot spring, 2.56 mL of a 0.0035 M solution of HCl is needed to reach the first equivalence point (pH=8.3) and another 10.42 mL is needed to reach the second equivalence point (pH=4.0)..
reaction vessel initially contains 153 torr of water at 700.0 {\rm K} in contact with excess solid carbon, find the percent by mass of hydrogen gas of the gaseous reaction mixture at equilibrium.
What products would you expect to obtain in the reaction of acetaldehyde with KOH? why are the products different than those obtained from the Cannizzaro reaction?
When iron(III) oxide reacts with hydrochloric acid, iron(III) chloride and water are formed. How many grams of iron(III) chloride are formed from 10.0 g of iron(III) oxide
A 14.0-g sample of CaCl2 is dissolved in 112 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
Which of the following clusters of orbitals would form the shape shown here (Part B 1 figure) either through the formation of a single molecule or by bonding to another atom of similar electronic geometry and results in an arrangement of orbitals ..
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