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Construct a simulated 1H NMR spectrum, including proton integrations, for CH3OC(CH2OCH3)3. Drag the appropriate splitting patterns to the approximate chemical shift positions; place the integration values in the small bins above the associated chemical shift. Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
Hexane has a negligible absorbance above 200nm. S sample of Hexane containing 20.0 mg/L of an aromatic compound (MW=114.3 as impurity had an absorbance value of 0.351 at 254 nm in a 2.00 cm pathlength cuvet
Write a balanced equation for the neutralization of potassium hydrogen phthalate (C8H5O4K) with sodium hydroxide. Calculate the mass of potassium hydrogen phthalate that neutralizes 15 mL of an ~0.040 M NaOH solution.
How much heat in kilocalories is required to melt 1.70 mol of isopropyl alcohol ? The heat of fusion and her of vaporization of isopropyl
A saturated solution of calcium iodate, Ca(IO3)2, is created by suspending a small amount of pure solid of Ca(IO3)2 in 50.0 mL of distilled water.
Calculate the Q for the water in Joules (c for water is 4.184J/g degrees celsius). Determine the Q for the metal in Joules based on your knowledge of conservation of energy. (you cannot use the Q=mcdeltaT equation, because you do not know the c fo..
A mixture of CO, CO2 and O2 is contained within a 275 mL flask at 0C. If the total pres- sure is 780 torr, the CO has a partial pressure of 330 torr and the CO2 has a partial pressure of 330 torr, what is the partial pressure of O2?
A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2 and 12.0 g of He at 14°C is in a 50.0-L container. What is the total pressure in the vessel.
find the vapor pressure of a water solution in which the mole fraction HgCI2 (a nonvolatile solute) is 0.163 at 25.
Determine whether each of the following causes an increase or decrease in the activity of the electron transport chain. 1. High NADH concentration
What range of accelerating voltages would be required to cover the mass range between 16 and 625, for singly charged ions, if the field strength is held constant?
A compound is known to have a free amino group with a pKa of 8.8, and one other ionizable group with a pKa between 5 and 7. To 100 mL of a 0.2 M solution of this compound at pH 8.2 was added 40 mL of a solution of 0.2 M hydrochloric acid.
what is the vapor pressure of ethanol at 290 K when heat of vaporization is equal to 38.56 kJ/mol and the normal boiling point is 351.4?
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