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Question- A solution containing a monoprotic weak acid (HA) that is 6.16% dissociated was found to have a pH of 2.87. Find Equil A-, HA, and the pka.
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Calculate how many gallons of the strong vinegar would need to be added to the 10,000 gallons of weak vinegar to obtain a solution that is appropriate 5.10% acetic acid, by mass.
Problem- Imagine that some digestive juices containing the strong acid hydrochloric acid accidently entered the bloodstream through a perforated ulcer. If the blood were well supplied with H?2PO??4, and HPO42? ions, tell what would occur chemica..
The two-wire unit is placed in a uniform magnetic field of magnitude 0.400 T such that the angle between the direction of I1 as well as the magnetic field is 68.5°. While we don't know the current in wire 2, we do know that it is smaller than the..
Suppose a solution contains 0.28 M Pb2 and 0.48 M Al3. Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2.
if it took 18.72 (+ and - 0.05) ml of the base to reach the equivalence point. what was the concentration of unknown acid? 2) what is the uncertainity associated with this determination?
Calcium fluoride is a solid that only slightly soluble in water. The solubility product of CaF2 is 3x10-11. Write the dissolution reaction of CaF2 in water.
carbon monoxide will burn in air to produce co2 according to the following equation 2 co g o2 g yields 2 co2 what
Find the temperature of 3 grams of chlorine gas in a 1.5 L container with 801 mmHg of pressure.
A modern sample gives 920 disintergrations/h. Estimate the age of the Scrolls from these data
A mixture of SO2, O2, and SO3 at 1000 K contains the gases at the following concentrations: [SO2] 5.0 x10-3 M [O2] 1.9 x10-3 M [SO3] 6.9 x 10-3 M Is the reaction at equilibrium
What must be the velocity, in m/s, of a beam of electrons if they are to display a de Broglie wavelength of 1 nm? (the mass of an electron is 9.109x10 -28 g)
Why is a mass measurement of an object more important than the volume measurement of an object. and What does the range value of 0 mean
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