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Which of the subsequent molecules would be expected to form hydrogen bonds in the liquid or solid state- ethylene glycol, methanol, and formaldehyde?
Adipic acid and citric acid have very similar melting points. Given two unkown samples, one being citric and the other adipic acid
Naturally occurring element X exists in three isotopic forms: X-28 (27.977 amu, 92.21% abundance), X-29 (28.976 amu, 4.70% abundance), and X-30 (29.974 amu, 3.09% abundance). Calculate the atomic weight of X.
If air contains ~380 ppm of CO2. the sodium stearate is constantly being exposed to air. Why does the sodium stearate still work in the presence of air
Explain why dimerization of the cyclopentadiene is the side reaction and discuss how to avoid this side reaction.
How many electrons, protons, and neutrons respectively are in the iron(III) ion, Iron- 56 with a 3+ charge
What is an anionic sulfide complex. Explain in terms of coordination chemistry, and show reactions of their formation. When do these complexes form. Are these complexes water soluble
What is the pH of a solution prepared by dissolving 11 mmol of a weak base in 350 mL of a 0.199-M solution of its conjugate acid
Consider the following reactions and select the false statement below. CO2(g) + OH?(aq) ? HCO3?(aq) Cr3+(aq) + 6H2O(l) ? Cr(H2O)63+(aq) A. in Cr(H2O)63+ the Cr3+ is attracted to the H2O molecules via ion-dipole intermolecular forces
Explain why it is important that the glassware and reagents used in a Grignard reaction are completely dry. Write an equation that describes what happens if phenylmagnesium bromide reacts with water.
Calculate the pH of a solution that is .210M in nitrous acid and .290M in potassium nitrite. The acid dissociation constant of nitrous is 4.50X10^-4.
Use a table listing the ordinate and area for the normal or (gaussian) distribution error curve to find the fraction of a gaussian population within the following boundaries for each one
a coffee cup calorimeter containing 100 ml of h2o is used. the initial temeperature of the calorimeter is 23c. if 2.40
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