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A 0.3000 g sample of carboxylic acid is burned in oxygen producing 0.5349 g of CO2 and 0.2202 g of H20. Find out the empirical formula of the carboxylic acid.
Aspirin has a pKa of 3.49 and that of acetic acid is 4.74. Explain the difference in acidity using the concept of resonance forms.
Subtract one from the other. In what direction do the functions point? What orbitals are "left" unused on the C atom?
Acetic acid is titrated with NaOH hydroxide. What is the relevant reaction. what is the equilibrium constant for this reaction, if Ka=1.76x10^-5 for acetic acid.
What is the boiling point in Celsius degrees of 150 g. of aluminum bicarbonate in 0.40 kg of water
what is the enthalpy change corresponding to the melting of 2.5 moles of h2o? what is the system? what is the
A solution contains 2.0×10-4 M Ag+ and 3.6×10-2 M CO32-. Determine Qsp for Ag2CO3. Will Ag2CO3(s) precipitate? [Ksp for Ag2CO3 is 8.1×10-12]
A solution contains 0.010 M each Cu(NO3)2 and Bi(NO3)3. An equal portion of 12 M NH3 is added to the solution. What is the initial concentration of OH- (in M) once the two solutions have been mixed together, but prior to any reactions occurring? Th..
Reaction of 1-methylcyclopentene (above) with HBr might, in principle, lead to a mixture of two alkyl bromide addition products. Draw these two alkyl bromides.
While 25mL of 0.10 mol/L HBr(aq) is titrated with 0.10 mol/L NaOH(aq), explain what is the pH at the equivalence point. Choose an appropriate indicator.
Using graphical techniques, calculate the distribution (i.e., the fraction) of chlorendic acid ( in uncharged, mono-anionic and di-anionic forms) at pH 3.5,5.0, and 7.5.
helium gas at 25 oc filled a balloon to a volume of 2.25 l. what would the volume of this balloon be when cooled at
How many grams of liquid sodium (minimum) are needed to absorb 4.70 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C?
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