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The fragrance of apricots is due to the ester pentyl butanoate. Write the equation for the synthesis of this ester from the acid and the alcohol. Provide the structure of isoamyl acetate, the alarm pheromone of the honeybee.
A buffer is created by mixing equal concentration is NH4+ and NH3. Calculate the volume of both solutions needed to create a buffer of pH = 8.75 with a total volume of 100ml
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum:
What is the thickness of the foil. the question asks for the thickness of foil in millimeters and also tells that the density is 2.699 g/cm^3.
Using the Henderson Hasselbalch equation, calculate the amount of monosodium phosphate (NaH2PO4, MW=120.01 g/mol) and disodium phosphate (Na2HPO4, MW=141.96 g/mol) required to prepare 100.mL of a 200. mM phosphate bugger of pH 6.5
suppose that a 5.0X10^-5 M solution of Ba(OH)2 is prepared. What is the pH of the solution?
The mass of a cube of iron is 292 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions.
Solution A is prepared by dissolving 80.4 g of Na3PO4 in enough water to make 1.50 L of solution. Solution B is 2.5 L of 0.620 M Na2SO4. Do not include units in any of your answers. What is the molar concentration of Na3PO4 in Solution A
If you have 375 molecules in a 10^-4 dilution, how many molecules were in the original solution
the concentration of mg2 in a sample of water is 262 mmoll at what ph will 99 of the mg2 be precipitated as mgoh2? ksp
When iron chloride FeCl3 is dissolved in water the solution becomes acidic. The preparation of the Fe(NO3)3 solution and the KSCN solution used 0.5 M HNO3 as the solvent instead of water. Explain why this was done.
What is molecular weight of a gas that effuses 1/4 as rapidly as CH4? I need to know how to SOLVE the problem. The answer should be 256.
a balloon filled with h2g at stp has a volume of 2.24 .what is the final gas volume if 0.10 mol heg is added to the
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