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David J hooper weighs out 13.1 grams of salicylic acid in a 250 mL flask and adds 7.5 mL of acetic anhyride (density=1.080 g/mL) Determine the max (theoretical number of grams) of acetlysalicylic acid he can prepare
The water level in a graduated cylinder initially at 210 rises to 277 after a piece of lead is submerged. What is the mass in grams of the lead.
Find the volume of a gas inside a cylinder - What will be the resulting volume of this gas?
a monoprotic acid that dissociates in aqueous solution. If a solution containing 0.50 M lactic acid is 1.66 percent dissociated to ionic form, calculate the value of Ka for lactic acid.
A 0.366-g sample of an unknown reducing agent required 30.0 mL of 0.100 N (normality) KMnO4 for titration. What is the equivalent weight of the reducing agent?
What is the molarity of a solution formed by mixing 20.0 g sulfuric acid with enough water to make 500.0 mL of solution?
The average molecular weight of the protein by gel permeation is 525000 g mass/g mol. Calculate the mole fraction of each component in solution.
What is the solubility in moles/liter for copper(II) iodate at 25 oC given a Ksp value of 1.4 x 10-7. Write using scientific notation and use 1 or 2 decimal places (even though this is strictly incorrect!).
When the valve between the 2.00 L bulb, in which the gas pressure is 3.00 atm, and the 3.00 L bulb, in which the gas pressure is 2.50 atm, is opened, what will be the final pressure in the two bulbs?
Write half reactions for the anode and cathode and the write a balanced cell reaction. Please include the states of matter in the equation
Propose a neutral structure for each compound that is consistent with the data. Note that the absolute stereochemical configurations of chiral substances cannot be determined from the data. Arbitrarily draw a configuration for an enantiomer (and b..
A mass of 2.052 g of a metal carbonate, MCO3, is heated to give the metal oxide and 0.4576 g CO2.
A 270- flask contains pure helium at a pressure of 755 . A second flask with a volume of 485 contains pure argon at a pressure of 727 torr.
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