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A certain aspirin tablet with a mass of 2.135 g contains 0.216g of aspirin. Explain what is the percent aspirin in the tablet?
When you calculated K in the rate equation for the reaction of KMnO4 solution and H2C2)4 solution, you assumed k had the same value under the condition of determination 1,2,3 A. What assumption did you make about the reaction of KMnO4 solution and..
What would the molecular orbital diagram for a compound made of equal portions of aluminum and phosphorous look like
Dimethyl ether and ethanol are structural isomers of C2H6O. Which one will have a higher boiling point? Explain why and do the same for their melting points.
Calculate the pH of each of the following strong acid solutions: 2.17 x 10^-2M HNO3 (express using 3 decimal places) 0.320 g of HClO3 in 3.00L of solution (express using 3 decimal places)
Assuming no loss of water and a heat capacity for the vessel of 10.0 J/C, what is the final temperature of the system ( C of copper = 0.387J/gC) ? What is the final temperature?
A 0.00400 mole sample of 2-chloro-2-methylpropane is added to 500 mL of water, and the mixture is stirred until the pH levels off. What is the pH of the solution.
a 5.00g sample of liquid water at 25.0degree c is heated by adding 84.0j of energy. the specific heat of water is
The intiala rates at various substrate concentrations for an enzyme-catalyzed reaction are as follows.
The oxygen conversion is 82.0%, and the concentration of the ethanol in the product stream is three times that of the aldehyde and four times that of the acetic acid. (a) What is the fractional conversion of ethane. (b) What is the production rate..
How many gm of dry NH4Cl need to be combined to 2.30L of a 0.300M solution of NH3, to prepare a buffer solution of pH 8.85.
During the electolysis of fused BaCl2, which reaction occurs at the cathode? (1)Chloride ions are oxidized (2) Chloride ions are reduced (3) Barium ions are oxidized (3) Barium ions are reducued
The reaction of boron with carbon monoxide produces compounds with these skeletal structures: B--B--C--O and O--C--B--B--C--O. For each of these compounds, draw the lewis structure that minimizes formal charges.For each compound select the atoms t..
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