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The molecular formula of C7H10O (3 degrees of unsaturation) was shown to give peaks in the 1H-NMR at 1.3 ppm (single), 2.9 ppm (single), 6.1 ppm (doublet), and 6.6 ppm (doublet). What is the structure of this molecule?
A solution containing HNO2 has pH=3.40 at equilibrium. Calculate the amount of HNO2 present in 575ml of this solution Ka=0.0004 answer is 0.01 g of HNO2
What is the percent mass concentration of NaCl in a solution that is prepared by adding 15.0 g of NaCl to 90.00 g water? What happens to each of the following properties of a solution when the concentration of solute is decreased?
Calculate the morality of a solution made by dissolving 0.750 grams of Na2 SO4 in enough water to form exactly 850 mL of solution. How many moles of KMnO4 are present in 250 mL of a 0.0475 M solution?
write the net ionic equations for the precipitation reaction or reactions that occur. b) what are the spectator ions in the solution?
A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume. Solution A: 1.31% (m/v) starch Solution B: 7.48% (m/v) starch
how many possible trisubstituted derivatives c6h3x2y can be obtained from the meta disubstituted benzene c6h4x2? ignore
Sketch the phase diagram of a pure substnace from the follwoing data. (A log P scale may help). There are two solid forms X and Y, which are both denser than the liquid, and Y is denser than X.
Tripeptide Protein: Acidic, Basic, or Neutral? Alanine has an R-group structure of CH3, cysteine has an R-group structure of HS-CH2, and aspartic acid has an R-group structure of HOOC-CH2
Write out the reaction mechanism for conversion of acetylferrocene to diacetylferrocene using acetic anhydride and 85% phosphoric acid.
If you dilute 25.0 of the stock solution to a final volume of 0.460 , what will be the concentration of the diluted solution?
liquid stream containing ethane and propane enters a flash chamber operated at 80 oF and 300 psia. Leaving the chamber, the vapour stream flow rate leaving the chamber
The resulting equilibrium solution has a pH of 10.21. What is the Ksp of the salt at 22 °C?
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