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Consider the titration of 50.0 mL of 2.0 M HNO2 (Ka = 4.0 x 10 -4) with 1.0 M KOH. At each step of the titration... a. write a reaction to show the initial reaction upon mixing b. construct and ICE table to represent the reaction ( should you use concentration or moles? c. determine the major species present after the reaction is complete d. calculate the pH of the solution COmplete these steps for the addition of 1.0 mL , 25.0 mL, 50.0mL, 100.0 mL , 110.0 mL and 1.0 M KOH.
The Ka for lactic acid is 1.4x10^-4. What is the pH of this buffer after .10 mol of solid NaOH has been added?
Consider the following compounds and suppose that 0.5M solutions are prepared of each:Nal, NH4Br, KF, KCN, KC2H3O2, CsNO3, and KBr. Write the formulas of those that have solutions that are A) acidic B)basic and C) Neutral
Above what temperature, in °C, will the following reaction become spontaneous? Assume free energy, enthalpy, and entropy are not temperature dependent.
You place ethanol of 100 grams and water of 100 grams in a refrigerator. both are at room temperature Initially,. Determine which of the two liquid samples will cool faster and also explain why this happens.
A 1.30 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mass percent, molality, mole fraction, and normality of the citric acid. Citric acid has three acidic protons.
if you were to use IR spectroscopy how would you differentiate between acetone, water, and diethyl ether? (include values and relate them to functional groups)
One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transmission that begins in the state with n = 5
How many liters of CO2 are formed at STP by the complete combustion of the propane in a container with a volume of 14.0L and a pressure of 4.5atm at 24?C?
What is the smallest possible integer coefficient of S in the combined balanced equation and compute the final pressure in the tank if nothing else is altered in the surroundings.
A 10.00 ml solution of zn^2+ of unknown concentration was mixed with 25.00 mL test reagent (a known excess) and diluted to a final total volume of 200 ml to produce a colored solution having an Absorbance of 0.104 at a certain wavelength.
Draw all the resonance structures for the N2O4 molecule. The skeletal structure of the molecule is
A weather balloon has a volume of 750 L when filled with helium at 8 oC at a pressure of 380 torr. What is the new volume of the balloon when the pressure is 0.20 atm and the temperature is -45 oC?
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