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The Beer's Law slope for the Fe-phenanthroline complex is found to be 0.2100 L/mg Fe. The absorbance of the diluted unknown solution prepared in accordance with the instructions in the exercise is found to be X, where X=.617. What is the concentration of the original unknown solution?
the solubility of co2 in water at 25degc and 1 atm is 0.034 moll. what is its solubility under atmospheric conditions?
show step necessary to make this ether (2-methyl propoxycyclohexane) by williamson ether synthesis starting with neutral compounds, not ions.
identify the species formed in the first step in the acid-catalyzed dehydration of 1-Methylcyclohexanol
Write the formula of the nine chemical substances mentioned in the introduction. Classify each as either a molecular compound, an ionic compound, a molecular element, or a metal. For the copper cycle experiment
Naturally occuring sulfur consists of four isotopes: 95.0% 32s (31.97207amu); 33s (32.97146amu, 0.76%);
How many photons are required to heat 295 of coffee from 25.0 to 62.0 ? Assume that the coffee has the same density, 0.997 , and specific heat capacity, 4.184 , as water over this temperature range.
calculate Delta S when the pressure of 1.0 mol of oxygen is doubled at a constant temperature T=298
If the Km of carbonic anhydrase for the above reaction is 1.8 mM, what is the catalytic efficiency of this enzyme under these conditions. The units are s-1M-1.
Why are monochromators (prism or grating monochromators) used in scanning instruments as opposed to absorption filters for
When a 23.7 mL sample of a 0.362 M aqueous nitrous acid solution is titrated with a 0.310 M aqueous potassium hydroxide solution, what is the pH after 41.5 mL of potassium hydroxide have been added
There are two common polymorphs of zinc sulfide: cubic and hexagonal. Based on the analysis of Madelung constants alone, predict which polymorph should be more stable.
What is the mass of a magnesium block that measures 2.3 cm * 3.5 cm * 1.5 cm? The density of magnesium is 1.738 g/cm^3
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