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A buffer solution was prepared by adding 85mL of a 0.8 M acetic acid solution and 80mL of a 0.31 M sodium acetate solution to a 500mL volumetric flask as well as diluting to the mark with distilled water. A reaction mixture was buffered with this solution by adding 40mL. The total volume of the reaction mixture is 100mL as well as the ionic strength is 0.2. Explain what is the hydrogen ion concentration of this solution?
the following wavefunction is proposed for an excited state of the lithiumatom psi 1radic61s1beta1 2s1beta1
a sample of an ethanol-water solution has a volume of 53.7 cm3 and a mass of 50.5 g. what is the percentage of ethanol
Determine E° for the reduction half-reaction Ce4+(aq) + e- → Ce3+(aq), given that the cell voltage for the following voltaic cell is E°cell = 1.887 V:
in a laboratory practical exam students were asked to prepare an aqueous buffer solution having a ph close to 9. which
A balloon was filled by mixing 10.0g of Ne(g) and 10.0g of O2(g). What is the mole fraction of oxygen in the balloon.If the total pressure in the balloon is 760 Torr, what is the partial pressure of the oxygen
A mixture of Na2CO3 and MgCO3 of mass 8.58 g is reacted with an excess of hydrochloric acid. The CO2 gas generated occupies a volume of 1.67 L at 1.24 atm and 26°C. From these data, calculate the percent composition by mass of Na2CO3 in the mixtur..
Assume that 2.2 million metric tons of adipic acid will be synthesized yearly by industrial nitric acid oxidation, and for every mole of adipic acid produced a mole of N2O will be emmited into the atmosphere. Calculate the number of moles and mass..
for each of the following slightly soluble salts write the equilibrium equation dor dissociation and the solubility product expression: a)Ag2S. b)Al(OH)3. c)BaF2.
For the following please provide the # of bonding domains, # of nonbonding domains, polarity, intermolecular attractive forces, and which IMAF is the most important.
The standard voltage of the cell Ag(s) | AgBr(s) | Br (aq) || Ag +(aq) | Ag(s) is +0.73 V at 25 ?C. Calculate the Ksp for AgBr.
You have 200ml of a solution which is 0.2M NH3 and contains 0.23grams of NH4Cl. a. What type solution is it? b. What is the pH of the solution
The mass of a 150 ml beaker was determined to be 82.123 g. A sand- salt mixture was placed in the beaker and the mass of the beaker plus the mixture was determined to he 86.246 g.
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