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A 35.0mL sample of 0.150 M acetic acid (CH3COOH) is titrated with 0.150 M NaOH solution. Compute the pH after the following volumes of base have been added.
0mL17.5mL34.5mL35.0mL35.5mL50.0mL
What is the value of Kf for acetic acid, given that its freezing temperature is 16.6 C and its density is 1.049 g/mL? Experiments show that a solution prepared by dissolving 5.00 grams of water
A voltaic cell consists of an Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell. Calculate [Pb2+] when Ecell is 1.017 V and [Mn2+] = 0.589 M. Use reduction potential values of Mn2+ = -1.18 V and for Pb2+ = -0.13 V
A 290 mL stock solution contains 2.3 M Ca(CN)2. When 100 mL of the stock solution is diluted to 125 mL, how many moles of CN- ions will be contained in the dilute solution
Sulfur has two solid forms - a (or rhombic) and b (or monoclinic). The standard enthalpies of combustion, in which the product is SO2, are -296.53 kJ/mol for S(s,a) and -296.86 kJ/mol for S(s,b). Find the standard reaction enthalpy for the process..
how many grams of sucrose c12h22o11 must be added to 589 g of water to give a solution with a vapor pressure 0.933 mmhg
Octane has a specific heat of 2.22 J/g.K. (a) How many joules of heat are needed to raise the temperature of 40.0 g of octane from 10.0 oC to 40.0 oC? (b) Which will require more heat, increasing the temperature of 1 mol of octane by 10 degrees
Calculate the potential of a hydrogen ( p= 1.02 atm) electrode in an aqueous solution of HBr (0.05 m ) at 298 K A) assuming ideal solute behavior. B) using the Deby- Huckel equation.
calculate script edeg values for the following cells. which reactions are spontaneous as written under standard
What is a zymogen. How are they activated. Give an example. What is a transition state. And what is its relationship with the active site
What is the density of Ar gas (molar mass, 39.95 g mol-1) at 21.2oC and 1.10E2 kPa? Give your answer in grams per litre (g L-1), accurate to three significant figures
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
Consider a hydrogen atom in the ground state. What is the energy of its electron? b. Consider a hydrogen atom in an excited state of
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