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Acetaldehyde decomposes to methane and carbon monoxide according to the following balanced equation: CH3CHO ? CH4 + CO In a particular experiment, the following kinetic data for the decomposition of acetaldehyde were obtained: Time(s) 0 1000 2000 3000 4000 [CH3CHO] (M) 0.4740 0.1513 0.0900 0.0641 0.0497 What is the value of the rate constant at the temperature of this experiment? Give an answer with concentration units of molarity and time units of seconds.
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of H+ is decreased by a factor of 3
when you reduce benzoin with NaBH4, why do you get mostly the meso compound?
Show that you can selectively precipitate ONLY AgBr at a concentration of Ag of 5.5x10^-10 M in a solution that contains both Br- and CI- at a concentration of 0.02M.
Write the Henderson-Hasselbalch equation for a solution of propanoic acid (CH3CH2CO2H, pKa = 4.874 ) using HA and A- in the expression. Using this equation, calculate the quotient [A-]/[HA] at A) pH 4.01 B) pH 4.874 C) pH 5.20
show example of a standardization of a base naoh using primary standard khp show an
The container is then cooled to 22.5 degrees C. One now finds that the gas pressure inside the container is 0.871atm. What mass of mercury(II) oxide was originally placed into the container
A sample containing 0.35 mol argon gas at a temperature of 13 C and a pressure of 568 torr is heated to 56 C and a pressure of 897 torr. A. What is the original volume of the gas? B. What is the new volume of the argon gas?
if a saturated solution of NH4NO3 at 70 degrees Celsius was cooled to 10 degrees Celsius, how many grams of solute will separate if the quantity of the solvent is 98 grams?
we were given freezing point and density and were asked to find kf and in second question enthalpy and entropy values
a certain first-order reaction has a rate constant of 7.50times10-3 at 45 . how many minutes does it take for the
Which of the following pairs of molecules is listed in order of decreasing net dipole moment (from more polar molecule to less polar molecule)
Execute the following mathematical operations and express each answer in scientific notation with the correct number of significant
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