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Many common weak bases are derivatives of , where one or more of the hydrogen atoms have been replaced by another substituent. Such reactions can be generically symbolized as where is the base and is the conjugate acid. The equilibrium-constant expression for this reaction is where is the base ionization constant. The extent of ionization, and thus the strength of the base, increases as the value of increases. Part A If for is 3.0×10-6, what is the of a 0.175 aqueous solution of ? Express your answer numerically. = Part B If for is 3.0×10-6, what is the percent ionization of a 0.325 aqueous solution of ? Express your answer numerically to three significant figures. percent ionization = Part C If for is 3.0×10-6 , what is the the for the following reaction? Express your answer numerically to two decimal places. =
Make an energy level diagram, showing ALL suborbitals, large enough to accomodate the 1st 36 elements
Show how butyric acid can be synthesized from 1-propanol. Do not use a metalloorganic reagent. You will need more than one reaction. Draw beta-aminobutyraldehyde and give its systematic name.
According to the following reaction, how many grams of ethylene (C2H4) are required for the complete reaction of 23.8 grams of hydrogen gas?
a chemist has isolated a new natural product and determined its molecular formula to be c24h40o4. in hydrogenation
A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.03 ft. What must be the standard deviation per 100 ft tape length to achieve the desired precision?
What is the name of the sticky gelatinous precipitate that is formed in the primary treatment process and carries away suspended dirt particles and bacteria?
Initially, .500 atm of H2 and .500 atm I 2 are mixed in an evacuated 1.0 L flask. The system is allowed to come to equilibrium and it is found tocontain 0.368 atm HI. What is the equilibrium partial pressure of I2 for the reaction shown below
A material is found to have a tenth-thickness of 2.3 cm for 1.25-MeV gamma rays. a) what is the linear attenuation coefficient for this material? b) What is the half thickness? c) what is the mean-free-path length for 1.25-MeV photons in this mate..
An organic sample (3 grams mass) is taken from an archeological site. The sample has a beta emission rate of 4.3 counts per minute. These decays originate predominantly from carbon-14 with a half-life of 8270 years. If the abundance of carbon-14 i..
Lactic acid (C3H6O3) which occurs in sour milk and foods such as sauerkraut, is a weak monoprotic acid.? The pH = 0.10 M solution of lactic acid is 2.43 What are the values of Ka and pKa for lactic acid
what are the concentrations of rm a and rm b after seventy seconds if the initial concentration of rm ab is 0.230m and
A colored substance Z has an absorption maximum at 350 nm. A solution containing 2 mg of Z per liter had an absorbance of 0.850 using a 1 cm cell. The formula weight of Z is 148.
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