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To calculate the electric potentials, we will use the convention that the electric potential is zero infinitely far from electic charges, but before we do that, explain in your own words:
What range is characteristic of weak acids? Why is there a correlation between electrostatic potential and acidstrength?
Show a born cycle that allows the comparison of a homolytic bond dissociation energy with the heterolytic bond dissociation energy of the same bond. Indicate which of the two bond energies will prob
An unknown salt is either NaF, NaCl, or NaOCl. When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08. What is the identity of the salt?
A standard solution of 0.243 M NaOH was usedto determine the concentration of a hydrochloric acid solution. If46.33 mL of NaOH is needed to neutralize10.00 mL of the acid, what is the molar concent
Calculate the ideal solubility of anthracene in benzene at25°C. The enthalpy of fusion of anthracene is 28.8 kJmol-1 and its melting point is 217°C.
What is the PH of the solution. what is the freezing point of the solution. what is the vapour pressure of the soultion( the Vapourpressure of pure water at 25 degree celsius is 23.76 mmHg ).
If 1.200 grams of the metal, M results in the formation of6.026 grams of the barium sulfate product, what is the atomic weight of the unknown metal, M? What is the Metal?
If 1lb of fat is stored by the body for each14.6*10^3kJ of excess nutritional energy consumed, how many bags of chips contain enough nutritional energy to result in 1lb of body fat?
Draw the structure of the product you would expect from thereaction of benzaldehyde and acetophenone with base. Suggest anyby-products of this reaction.
Why is it possible to separate the product (6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone) from sodium hydroxide using acetone?
A chemist started to carry out column chromatography on aFriday afternoon, reached the point at which the two compoundsbegin separated.
Why do we add cyclohexene to the trans-stilbene with bromine in dichloromethane reaction mixture? What additional product is formed because of this addition (Draw and name it)?
Thiamine hydrochloride (C12H18ON4SCl2)is a water soluble form of thiamine (vitamin B1; Ka=3.37 X 10^-7).How many grams of the hydrochloride must be dissolved in 10.00 mLof water to give a pH of 3.2
How do you synthesize 1-phenylcyclopropanol from benzene using any solvents, reagents needed, or alcohols containing no more than 1, 2, or 3 carbons?
Nitroglycerin contains 60% as many carbon atoms as hydrogenatoms, three times as many oxygen atoms as nitrogen atoms, and the same number of of carbon and nitrogen atoms. The number of moles of nitr
How do you synthesize 3-methyl-3-heptanol from 1-butanol using any solvents, reagents needed, or alcohols containing no more than 1,2,or 3 carbons?
Sketch reasonably accurately the pH curve for the titration of10.0 mL of 0.001M KOH (aq) with 0.1M HCl (aq). Calculate and markon the curve (a) the initial pH, (b) volume of HCl added to reachthe st
If 100 mL of BaSO4 solution required 33.79 mL of 0.1050M sulfuric acid to reach the equivalence point, what is the concentration of the barium hydroxide?
HCl, HBr, and HI are strong acids, yet HF is a weak acid. What does that mean in terms of the extent to which these substances are ionized in solution?
How do you determine the pH of the thing given the molarity?For example, if there is .250M solutions of HNO2 what would the pH be?
A student wants to react Mg(s) with 100mL of 1.5 M HCl, but theintent is to have all the Mg(s) react, while leaving 50% of the HCl unreacted. How much Mg (in g) should the student add to the HCl?
You have determined a GC spectrum for your sample oil. You find 3 peaks. From determination of peak area, you find that the percent compositions represented by the peaks are: peak A is 62 percent ,
If the R-3-methyl-1,2-cyclopentanedione (shown below) was reducedwith sufficient sodium borohydride to reduce both carbonyls,several stereoisomers of 3-methyl-1,2-cyclopentanediol would be formed.
A student boils the water in which he is attempting to dissolve his aspirin tablet, which weighs 392 mg, for several minutes. His titration with 0.050 M NaOH solution requires 44.37 mL.