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Consider the titration of a 23.0 mL sample of 0.110M HC2H3O2 with 0.130M NaOH. Determine the pH at 6.00 mL of added base.
A laser pulse with wavelength 555nm contains 4.40mJ of energy. How many photons are in the laser pulse.
starting from alcohol that contains four or less carbon atoms and from benzene and toluene,
The linear molecule FeH2 has been observed in the gas phase. Assume that the iron atom can potentially use s, p, and d orbitals to interact with the hydrogens. If the z axis is collinear with the molecular axis
How many moles of hydrofluoric acid (ka=6.8e-4) must be added to 500 ml of .10M sodium fluoride to give a buffer of pH 3.20
What unknown compound will result in a positive reaction to bromine only by UV light and will this compound have a negative reaction to KMnO4?
Show reasonable function group test to distinguish between the following compounds and write down their characteristic observation. A) 2-butanol and t-butyl alcohol
vitamin tablet contains 125 mg of vitamin C (C6H8O6). How many vitamin C molecules are contained in the tablet?
The boiling point of a glucose solution (d = 1.16 g/mL) is 100.21 oC. Calculate the osmotic pressure of that solution at 298K. (glucose = 180.2 g/mol ; kfp for water = 1.86 oC/m ; kbp for water = 0.520 oC/m)
A bottle of wine contains 14.5% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality.
Calculate the heat released when 1 kg of white phosphorus is allowed to burn in air at a constant pressure of 1 bar.
Describe each of the following equations in terms of 1)number of particals and 2)number of moles: a) 2Al(s)+3Cl2(g)--->2AlCl3(s); b) 4HCl(g)+O2(g)--->2Cl2(g)+2H2O(g).
Draw all of the carbocation resonance structures that result when the tosylate ion leaves from 1-(tosylmethyl)cyclohexa-1,3-diene. Input the radical lone electrons.
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