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Unknown compound with a solubility of2.8 g/100ml at 0 degree C and a solubility of 5.5g/100 at 70 degree C. If the minimum amount of solvent is recrystallized at 12.8 g by heating it to 70 C and sampling it in an ice water bath what is the minimum percent recovery of the recrystallized material?
2000°C the equilibrium constant for the reaction is Kc = 2.4 103. 2 NO(g) N2(g) + O2(g) If the initial concentration of NO is 0.150 M, what are the equilibrium concentrations of NO, N2, and O2.
The density of lead is 11.3 g/mL. The water level in a graduated cylinder initially at 216 mL rises to 292 mL after a piece of lead is submerged. What is the mass in grams of the lead?
draw correlation diagram the HOMO of allyl anion and the LUMO of ethylene and comment on the symmetry match of the two.
How many possibilities are there to assort the billiard balls in a line (include the (white) cue ball)? How many possibilities are there to arrange 6 red and 6 yellow balls in a line?
how many g of A will be transferred to the new ether layer? (K remains the same, even though the number of g of A being partitioned is smaller. How many total g of A have been extracted into the two ether fractions?
Determine compound having greater Ksp or compound having smaller Ksp ? compute [Ag + ] when CuI just start to precipitate. What % of Ag + remains in solution at this point?
Determine how many grams are there in 4.5+10 22 molecules of Barium nitrate and determine what is the molar mass of a gas ?
List at least three potentially hazardous features associated with concentrated sulfuric acid.
Compute the molecular formula of CH 3 COOH the percent composition of acetic acid is 39.99% C and 6.73% H. The remainder of the compound is oxygen.(The molar mass of acetic acid is 60.06 g/mol.)
A sample of neon is collected at 2.7atm and 12.0C.It has a volume of 2.25L. what would be the volume of this gas at STP.
What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the following equation?
If the density of the solution is 1.1094 g/mL, what is the molarity of the sulfuric acid?
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