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What oh would allow for best separation of Mn2+ and Ni2+? Explain. With .030M Mn2+, .030 Ni2+,.10M H2S. Ph of MSN is 5.01 and 1.29 for NiS
How much of the cation that first precipitated remains when the second cation behind to precipitate? Would this fractional procedure be a good separation technique for these ions?
A stellar object is emitting radiation at 3.75 mm. If the detector is capturing 3.3*10^8 protons per second at this wavelength, what is the total energy of the photons detected in one hour
What is the most likely cause of error in the molar mass that have been determined i the lab and how to minimize this error in the future experiments
48.61g od maagnesium was dissolved in diluted sulfuric acid and 490g of MgSO4. 7H2O was isolated from the solution. How many percent of impurities did the metal contain?
1. which pair of esters is most likely to provide a useful claisen synthesis.2. which is the major product formed in
Consider the following experimental data set obtained for the density of a metal object as measured by three students in the laboratory: 6.02g/mL, 6.04g/mL, and 6.05g/mL. The actual density of the object is known to be 5.00g/mL. Calculate the abso..
What is the freezing point (C) of a solution prepared by dissolving 15.3 g of Ca(NO3)2 (formula weight=164 g/mol) in 115 g of water? The molal freezing point depression constant for water is 1.86 C/m.
What mass of methane, CH4, is contained in a 500.-mL sample of CH4 at STP?
when carbon is burned in the presence of oxygen, the carbon and oxygen combine to produce carbon dioxide. if you start with 3 grams of carbon and 8 grams of oxygen and they react completely, how many grams of carbon dioxide will be produced?
The molecular formula of C7H10O (3 degrees of unsaturation) was shown to give peaks in the 1H-NMR at 1.3 ppm (single), 2.9 ppm (single), 6.1 ppm (doublet), and 6.6 ppm (doublet). What is the structure of this molecule
In this experiment we used ortho-vanillin and p-toluidine to form the imine. Why does the reaction mixture turn into a liquid when the ortho-vanillin and p-toluidine are initially mixed? What is the name or melting point of the product?
how many moles contain each of the following?1.25 x 1015 molecules co23.59 x 1021 formula units sodium nitrate2.89 x
For the following reaction, 3.00 grams of chlorine gas are mixed with excess sodium iodide. The reaction yields 4.38 grams of sodium chloride.
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