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While performing an activation energy experiment you accidently added 4.0 ml of water instead of 1.0ml. Explain how would this error effect the time required for the color to change? (Increase, Decrease, Un-effacted).
A typical aspirin tablet contains 324 mg of aspirin (acetylsalicylic acid, C9H8O4), a monoprotic acid having Ka=3.0×10?4. If you dissolve 4 aspirin tablets in a 340mL glass of water, what is the pH of the solution and the percent dissociation?
1 liter of a solution contains 0.75 moles of acetic acid and 35 grams of sodium acetate. calculate the concentration of
what is the pH of the buffer solution and what is the ratio of acid to conjugate base in order to decrease the pH by 1.00 unit from the value calculated of the buffer solution.
If the Km of carbonic anhydrase for the above reaction is 1.8 mM, what is the catalytic efficiency of this enzyme under these conditions? The units are s-1M-1.
Suppose that 5193.0 J of heat energy is added to 7 g of ice initially at -10 C. (This could be done, for example, by electrical heating of ice in an insulated container.) What is the final temperature of the water
What volume of chlorine gas at 25.0 Celsius and 855 mm Hg of pressure is required to react with 84.0g of phosphorus as given
the pressure of the vapor in this experment when the flask was full of vapor was assumed to be equal to the pressure of the atmosphere in the laboratory. why is this assumption valid
You are given an unknown sample that when treated with hydrochloric acid forms a precipitate. After decantation, you add boiling water to the solid. All of the solid disappears.
explain the detoxification of acetaminophen alcohol and sodium nitrite with biotransformation of xenobiotics. describe
Calculate the change in entropy (in J/K) when a 67.9 g of water is heated from 14.8 ºC to 74.0 ºC at 1 atm. (The specific heat is 4.184 J/(g-K).)
What is the definition and units for atomic mass. What is the difference between molecular mass and nominal mass. Which one do we usually use.
What is the concentration of [Cl?] in a solution of 10 mL of 12 M HCl when 6 mL of water is added
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