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Describe and explain the possible effect on your results of the following experimental errors or variations. a) you added only enough 3 M H2SO4 to bring the pH down to 4. b)your reaction mixture had an oily layer on top when you added the 3 M sulfuric acid. c) be cause of a label-reading error by a lab assistant the bottle labeled "salicylic acid from benzene" actually contained acetylsalicylic acid(aspirin).
Kr (g) in a 18.5 L cylinder exerts a pressure of 11.2 atm at 28.2 °C. How many grams of gas are present
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount available from pure gasoline
Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision: qV = ?26.434 kJ/g. When a 2.088 g sample of C6H5COOH..
A 585 g piece of copper tubing is heated to 97.2°C and placed in an insulated vessel containing 51.0 g of water at 26.0°C.
Use condensed formulas or line angle formulas to illustrate the saponification reaction of the fatty acid that is BOTH an OMEGA-6 AND AN 18:2 FATTY ACID
The photon emitted or absorbed during an electronic transition between n = 1 and n = 2 in a hydrogen atom has a wavelength in the visible portion of the electromagnetic spectrum and an energy that is greater than a similar electronic transition
What is the freezing point of a solution that contains 23.0g of urea, CO(NH2)2, in 275mL water, H2O. Assume a density of water of 1.00 g/mL
An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500-mL sample at 700. torr and 38 degrees celcius, she adds 19.50 mL of 0.01017 M aqueous iodine
The inositols are a group of naturally occurring stereoisomeric 1,2,3,4,5,6-cyclohexanehexols. The most commonly occurring inositol is shown at the below. Is the structure shown chiral or achiral
Two vessels are labeled A and B. Vessel A contains NH3 gas at 73 degrees C and vessel B contains Ne gas at the same temperature. If the average kinetic energy of NH3 is 7.1 10-21 J/molecule at 70 degrees C.
10% tin can be added to copper in the molten state and cooled to give a substitutional solid solution known as bronze. This means that the crystal structure of the solid solution
Write a brief discussion of the bond dipoles of iodomethane and the corresponding Grignard reagent.
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