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What is the method of separating gold / black sand from magnetite ? Can a box of iron nails and steel needles be separated? How and why?
Ethyl acetate can be prepared from ethanol as the only organic starting material.
what is the boiling point of radiator fluid that is 50 antifreeze by mass?ethylene glycol the primary ingredient in
A mass of gaseous water is given at a certain temperatur and a mass of liquid water is given at another temperature and it wants to know the final temperature of the system and the heat capacity is constant
Question- A 25.0 mL sample of 0.723 M HClO4 is titrated with a 0.273 M KOH solution. What is the [H+] (molarity) before any base is added
A method for measuring organic carbon in seawater consists of oxidation of the organic materials to CO2 with K2S2O8, followed by gravimetric determination of the CO2 trapped by a column of NaOH-coated asbestos.
Draw the major organic product from reaction of 1-butyne with BH3 in THF, then H2O2, OH-. If no reaction occurs, writE ethane, CH3CH3.
Discuss the consequences in terms of Type I or Type II errors if the cutoff range is changed by using i) the 1' percentile or ii) the 10th percentile of the disorder ranges
If an additional .125 mol of the disulfur decaflouride is added and equilibrium reestablished, what will be the concentrations of each component.
Explain The Chemistry of Food Composition, find the nutritional values/info in food from USDA Nutrient Data Laboratory?
How many liters of O2 gas measured at 861 torr and 250.0°C are formed by the decomposition of 200. g of KClO. (You will need a balanced equation where KClO is the reactant. The other product is KCl.)
calcuate the wavelength (in nanometers) of an electron weighing 9.10939x10^-28g moving at 3.90x10^6 m/s.
Thin-layer chromatograph------Describe how the Rf for a compound will change as the developing solvent is made more polar. What is meant by "developing" a TLC plate. What is meant by "visualization" of a TLC plate
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