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Calculate the pH of a buffer solution (consisting of 30mL 1.0M NaA + 30mL 1.0M HA and a pH of 4.75) mixed with 2mL of 1.0M NaOH. (In class we got a calculated pH of 4.63 for the mixture of the buffer solution with 2mL 1.0M HCl but I'm unsure of how to do this with NaOH).
Consider the following reaction: CO + 2H2= CH3OH, kp= 2.26 x 10^2 at 25C . Calculate delta G for the reaction at 25C under each of the following conditions.
What is the concentration of all ions present in this strong electrolyte solution: 0.100mol of Ca(NO3)2 in 100.0ml of solution?
how much energy is required to turn 500 g of ice at -15.0 celsius to liquid water at 55.0 celsius? specific heat (ice) = 2.10 J/g * C. Specific heat (water)= 4.18 J/g*C
4-methoxybenzoic acid is a weaker acid than benzoic acid, but methoxyacetic acid is a stronger acid than acetic acid. Explain this apparent contradiction.
Under What circumstances is it possible for the requirements for chirality at a carbon atom to be satisfied but for a molecule containing
If a 10.00mL sample of unknown concentration of HF is titrated with 28.94mL of 0.1040M NaOH
a 50.0 g sample of water is cooled from 30 degrees Celsius to 15 degrees Celsius losing 3140 J of heat What is the change in enthalpy.
If a 0.10mL volume of oil can spread over a surface of water of about 32.0m^2 area, calculate the thickness of the layer in centimeters. Enter your answer in scientific notation.cm?
what is the acid dissociation constant of a weak acid if a concentration of 0.3 M gives a hydrogen ion concentration of 0.001M?
Show the full mechanism of bromination for both 2,4-nitrophenol
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 82% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9*10-12.]
An unknown compound X, is thought to have a carboxyl group with a pka of 2.0 and another ionizable group with a pka between 5 and 8. When 75 ml of 0.1 M NaOH was added to 100 ml of a 0.1 m solution of X at pH 2.0, the pH increased to 6.72.
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