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Molecular structure of glycerol-1-linolenate-2-palmitate-3-eliadate? and theoretical Iodine Value and Saponification Number?
32.4 mL of 0.153 M HCl(aq)will neutralise 25.0 mL of NaOH(aq) solution of unknown concentration. Calculate the concentration of the NaOH(aq)solution. Your answer should be in molL-1(aka M). Please do not include units in your answer.
Aluminum has a specific heat of 0.880 J/g-deg. How many joules are needed to heat 155g of Al from 20.0oC to 75.0oC
Identify R and R' in Equation 1 when the ester, aspirin, is made from salicylic acid and acetic acid. Calculate the theoretical yield of aspirin to be obtained in this experiment, strating with 2.0g of salicylic acid and 5.0mL of acetic anhydride
What length of time (minutes) would be required to plate 12.25 g of nickel from a NiCl2(aq) solution?
The mole fraction of oxygen in air is .210. If the atmospheric pressure is .979 atm, what is the solubility of oxygen in air at 25.0 degrees C?
solution of water (Kf = 1.86^ C/m) and glucose freezes at - 2.55^ C. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 ^ C.
Calculate the pH of an HCl solution if 16.5 mL of this HCl solution is titrated with a 0.454 M NaOH and it took 5.65 mL of the NaOH to reach the equivalnce point.
173.3 g of NaCl completely dissolves (producting NA+ and Cl- ions) in 1.00 kg of water at 25.0 degrees celcius. the vapor pressure of pure water at this temperature is 23.8 torr. Determine the vapor pressure of the solution. A)19.3 torr B)23.8 tor..
A drop of concentrated hydrochloric acid (12M) falls into a pond containing 3x105L of pure H2O. Presuming the volume of a drop is .25mL explain what is the pH of the pond after the acid is added
Explain the crystal field splitting you would expect for the f-orbital in octahedal geometry, explain how could the splitting change if the octahedral complex lost a ligand to become a square pyramind,
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reactio..
arrow notation to draw the mechanism for the formation of polystyrene from styrene and benzoyl peroxide.
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