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What is the change in vapor pressure when 164 g of glycerin (C3H8O3) is added to 338 mL of H2O at 39.8 °C.
The vapor pressure of pure H2O at 39.8 °C is 54.74 torr
The density of H2O at 39.8 °C is 0.992 g/mL.
How do you account for the trend of melting points in this series of acids? octanoic (caprylic) C8H16O2 at 17.5 degrees C, decanoic (capric) C10H20O2 at 31.5 degrees C, dodecanoic (lauric) C12H24O2 at 44 degrees C, tetradecanoic (myristic) C14H28O..
If a person wished to reduce the retention time of a non-polar compound in Reverse phase HPLC, what factors might I change to reduce the non-polar compounds retention time
What is the pH of the solution at the cathode if E^o cell = -0.362V for the following electrochemical cell at 25 degrees C? Pt | Hw(g,1.0 atm) | H+(aq, 1.00M) || H+(aq) | H2(g,1.0atm) | Pt
Kw=1.0E-14. A sample of 0.1355g of an unknown monoprotic acid was dissolved in 25.0mL of water and titrated with 0.0950 M NaOH. If the acid required 19.3mL of base to reach the equivalence point, what is the molar mass of the acid
Methyl salicylate + NaOH --> disodium salicylate + Ch3OH + H20 disodium salicylate + H2SO4 --> salicylic acid + Na2SO4 The two chemical equations above are for the synthesis of salicylic acid. In the second equation, when H2SO4 is added quickly to..
KCl has the same crystal structure as NaCl. Calculate the volume of the unit cell, given that ionic radii are K+ = 152 pm and Cl- = 167 pm. Compare the density of KCl. Which has the larger unit cell, NaCl or KCl?
Use the values in Appendix D of your text to calculate Ka to four decimal places for the hydrogen sulfate ion at 25 °C. (The answer in my Chem II text is 0.012.) HSO4-(aq) SO42-(aq) + H+(aq) Ka = ?
Use the standard reduction potentials to find the equilibrium constant for the following reaction at 25 degree Celcius:
Compare the staggered conformers of 1,1,1-trifluorobutane (C2-C3). Why is one of the staggered conformers most stable. Why is one of the staggered conformers least stable
Why is the reaction of the dissolving ammonium nitrate (NH4NO3) in water spontaneous even though the dissolution is endothermic
Explain why acetone in the cyclohexane would invalidate the experiment?
Consider the compounds water, ethylamine, acetone, and aniline, whose Kb values can be found here. Classify them by whether they can be appreciably (Keq>1) protonated by: pyridinium, CH3OH2 , both, or neither.
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