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Explain what is the three products o vanillin, which one is the strongest? Define by using the characteristics of the other substituent group to support answer, also include a skeletal structure and IUPAC name for this product.
On the basis of your knowledge of bonding in liquids and solids, arrange the following substances in order of highest to lowest melting temperature: NaCl, Na, Cl2, SiO2.
Calculate the pH of an KOH solution if 56.4 mL of KOH soultion is titrated with a 0.875 M HCl and it took 15.6 mL of the HCl to reach the equivalence point.
Of the seven categories of matter (metallic network, non-metallic network, ionic-covalent network, ionic network, polar molecular, weakly polar molecular, and non-polar molecular), which are the most similar. Why
In the temperature range from 40 K to 90 K, a certain amount of liquid has a temperature dependent heat capacity that is given by Cp = 18.5 J K?1 + T × 0.24 J K?2. Determine the enthalpy change resulting from heating this sample from 58.0 K to 72...
Hemoglobin is the protein that transports oxygen in mammals. Hemoglobin is 0.342% Fe by mass, and each hemoglobin molecule contains four iron atoms. Calculate the molar mass of hemoglobin
Explain why most multicellular organisms use an iron-containing protein for oxygen binding rather than free iron. Your answer should include an explanation of (a) the role of heme and (b) the role of the protein itself.
the question states the distribution coefficient for caffeinein dichloromethane and water is 4.6. assume that your 100
Copper (II) Iodate precipitates from iodate solution. The formula of the precipitate is Cu(IO3)2. A saturated solution of this substance was made in 0.01 M KlO3. The copper concentration was found to be 0.0012M
Write the condensed electron configurations for the following atoms, using the appropriate noble-gas core abbreviations. In order of increasing orbital energy. a) U b) Pb
Assuming electrons with quantum numbers (n,l,mt,ms), how does an electron with the quantum numbers (2,1,1,+1/2) differ from an electron with quantum numbers (2,1,-1,+1/2)?
Trace amounts of rare elements are found within groundwater and are of interest to geochemists. Europium and terbium are lanthanide-series elements that can be measured from the intensity of their fluorescence emitted when a solution is illuminate..
In the spectrum of atomic hydrogen, a violet line is observed at 434nm. Determine the beginning and ending energy levels of the electron during the emission of energy that leads to the spectral line.
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