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1. 11 mL of 0.0100 M HCl are added to 25.0 mL of a buffer solution that is 0.010 M HC2H3O2 and 0.11 M C2H3O2-. What is the pH of the resulting solution?
2. Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 2.1 x 10-2 Ka (HX-) = 8.2 x 10-83. Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 9 x 10-5 Ka (HX-) = 5.3 x 10-11
In which of the following would the bonding be weakened with the addition of an electron to form the negative molecular ion?
the volumes in the buret and the flask are identical, and the concentration of the acid in the buret is 1.00 M. If the entire volume of the buret is required for titration of the base in the flask, what is the concentration of base?
A helium balloon at a high altitude has 2.1 × 104 L of helium at 0.40 atm and -13°C. If the balloon descends to an altitude in which the atmospheric pressure is 1.00 atm and the temperature is 20°C.
Write a balanced reaction for the acid-base reaction of diethylbenzyl phosphonate with sodium hydroxide. Which hydrogens are the most acidic?
Electrolysis is used to gold plate jewelry made of stainless steel. a) what half reaction takes place to plate Au^3+ on a stainless steel earring? b) is the earring the anode or cathode? c) why is energy needed to gold plate the earring
A 13.00 g sample of an ionic compound NaA, where A- is the anion of a weak acid, was dissolved in enough water to make 100.0 mL of solution and was then titrated with 0.100 M HCl.
Room temperature is often assumed to be 25 degrees celcius calculate the molar volume of an ideal gas at 25 degrees celcius and 1 atm pressure
Which of the following statements are correct concerning the comparison of the physical properties of pentane and diethyl ether
By what factor will the kinetic energy change if the speed of the motorcycle is decreased to 33mph? (c) Where does the kinetic energy of the motorcycle go when the rider brakes to a stop?
Does the product xyz necessarily vanish when integrated over a a) cube, b) tetrahedron, c) hexagonal prism, each centered on origin?
Confirm that the z-component of orbital angular momentum is a basis for an irreducible representation of A2 symmetry in C3v.
How many moles of NaOH would be required to completely neutralize 37.22 mL of 0.25M HCl?
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