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If an aqueous solution of certain organic compound has a density of 1.063g/mL, an osmotic pressure of 12.16atm at 25o C, and a freezing point of -1.03 o C. The compound is known not to dissociate in water. Explain what is the molar mass of the compound?
Aceticle acid is a weak acid with pk=4,75.what is the pH of a solution prepared by adding 0,1 mol of acetic acid and 0,03 mol of NaOH to water at a final volume of 1liter. use henderson-hasselbach equation for calculations.
An unnormalized wavefunction for an electronin a carbon nanotube of length L is sin(2pix/L). Normalize this wavefunction.
Explain why triethylamine is a weaker base than dimethylamine or methylamine.
What is the coefficient of the permanganate ion when the following equation is balanced?
The volume of oxygen used was 747.0 milliliters at 1,092 K and12.00 atm pressure, Calculate the percentage by weight of graphitein the original mixture.
Write a mechanism for the formation of N-(2, 4-dinitrophenyl) aniline via nucleophilic aromatic substitution. Show all resonance forms that stabilize the intermediate in this reaction.
An experiment shows that a 112-mL gas sample has a mass of 0.120 g at a pressure of 733 mmHg and a temperature of 33.0°C.
Why is GC a poor choice for analyzing large molecular weight materials. Specifically identify these limitations. For all practical purposes what is our upper limit in GC
The following molecular equation represents the reaction that occurs when aqueous solutions of lead(II) nitrate and barium iodide are combined. Pb(NO3)2(aq) + BaI2(aq) PbI2(s) + Ba(NO3)2(aq)
Use the activity series to determine which of the following ions will be reduced when an aluminum strip is placed in an aqueous solution of that ion: a)Fe^2+(aq) b)Au^3+(aq) c)Zn^2+(aq) d)H^+(aq) e)Pb^2+(aq)
Sulfuric acid sold for laboratory use consists of 96.7% by mass sulfuric acid; the rest is water. the density of the solution is 10845 g.cm^(-3). Compute the number of kg and pounds of sulfuric acid in 2.20 liter bottle of laboratory sulfuric acid
How many grams of dry NH4Cl need to be added to 2.00 of a 0.100 M solution of ammonia, , to prepare a buffer solution that has a of 8.64? Ka for ammonia is 1.8*10^-5.
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