Explain pka of the acid function at the two-position
There are two carboxylic acids functions in 3-nitrophthalic acid. The pka of the acid function at the 2-position is approximately 2, whereas that at the 1-position is about 3. Which of the two is more acidic and why?
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Assuming equal concentrations of conjugate base and acid, which one of the following mixtures is suitable for making a buffer solution with an optimum pH of 9.2 - 9.3?
Carbon tetrachloride flows with a velocity of 0.30m/s through a 30mm diameter tube. A model of this system is to be developed using standard air tube as the model fluid.
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if 7 moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the maximum amount of sulfur trioxide, how many moles of which reactant remain unused at the end? 3S + 3O2 = 2SO3
The pka of the acid function at the 2-position is approximately 2, whereas that at the 1-position is about 3. Which of the two is more acidic and why?
A rifle is aimed horizontally at a target 50.0 m away. The bullet hits the target 1.70 cm below the aim point. What was the bullet's flight time? What was the bullet's speed as it left the barrel?
An inductive circuit takes a current of 10.5 amperes when connected to a 500 volts 50c/s supply. this current rises to 12.5 amperes when frequency is reduced to 40 c/s. the voltage being maintained constant.find the resistance and inductance o
what will be the heat capacity of a constant pressure, coffee-cup calorimeter that contains 100.0 ml of 3.0 M HCl solution? the density of the sloution is 1.098 g/mL, the specific heat capacity of the HCl solution is 4.1 J/gK and the heat capacity
When M2S3(s) is heated in air, it is converted to MO2(s). A 3.700-g sample of M2S3(s) shows a decrease in mass of 0.207 g when it is heated in air. What is the average atomic mass of M?
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With in-text citations and references, explain the key components necessary for the success of public health infrastructure.
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