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what molecule would give the following mass spec data? m/z =15, 29, 43, 57 provide the dominate peaks in the spectrum. the m/z =57 (m-29) is the base peak. and the mz = 43 and 29 ions are also abundent. the M+ ion of 86. explain your resoning.
How does the entropy of the system PbI2(s) + H2O(l) change as PbI2 (s) dissolves in water at 25 degrees celsius? Explain your answer.
How is hydrogen bond differnt from an ionic or covalent bond?
Explain why and calculate the difference between the delta S° values at 298 K for the complete dissociation of the two complex ions. (Hint: the value delta H is about the same for both systems.)
Determine how many grams of carbon dioxide will be present in the equilibrium mixture? Considering the given equations CO(g) + H 2 O(g) CO 2 (g) + H 2 (g) if it is given =K c = 23.2
Chemists often use molarity ,M in Moles/liter , to measure the concentration of solutions. Molarity is a common unit of concentration because the volume of a liquid is very easy to measure
Calculate the de Broglie wavelength for each of the following.
What is numerical value of the equilibrium constant for the reverse reaction?
Giving examples give the mechanisms of Aldol condensation between two molecules of aldehydes and two molecules of ketones
Determine the amount of hydrochloric gas that should be bubbled into the buffer to triple hydronium ion concentration is closest to what?
What is the most likely reason OSHA requires ammonium nitrate to be segregated for sulfur or finely divided metals? Explain your answer.
Which reaction sequence would be best to prepare m-chloroaniline from benzene? a. chlorination, nitration, reduction
The normal boiling and freezing points of substance X are 87.3 K and 84.0 K respectively. The triple point is at 82.7 K and 0.68 atmosphere. a. Draw a phase diagram for substance X. Label the regions in which the s,l, and g phases are stable.
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