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The pH of a 0.10 M nicotinic acid solution is 2.93. What is the approximate value of Ka for nicotinic acid, HC6H4NO2? Assume small percent dissociation. pH = ?log10[H+].
One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would this a) affect the separation between hexane and heptane?
Calculate the molar solubility of thallium chloride in 0.20M NaCl at 25 degrees Celcius. Ksp for TICl is 1.7 x 10 -4. What volume of 0.500 M HNO3 is needed to titrate 60.00 mL of 0.500 M Ca(OH)2 to the equivalence point?
volume of 20.0 mL of a 0.190 M HNO3 solution is titrated with 0.550 M KOH. Calculate the volume of KOH required to reach the equivalence point.
Predict what volume (mL) of 0.3000 M NaOH is required to titrate 25 mL of 0.3000 M HCl to the equivalence point
If I ate to eggo waffles with lite syrup, 1 egg with a little bit of hot sauce with a bottle of water and I do Leslie Sansone's Just walk belly blasting walk with two workouts and two fast miles exercise video after I at that.. Will I have burned of..
What must the concentration be, of each member of the buffering acid/base pair, if the reaction is expected to release 0.1 millimoles of H+?
which of the following chemical combinations of the elements would be most exothermic, Na and Cl
What happens to the carbon level of the carbonyl carbon when a Grignard reacts with acetone? What happens to the carbon level
Show how many µL of protein sample you will take and add with the desired volume of DTT and Laemmli buffer to make the right concentration of sample.
The enthalpy of combustion of benzoic acid (C6H5COOH) which is often used as the standard for calibratie constant-volume bomb calorimeter; its value has been accurately determined to be 3226.7 kJ/mol.
The titration of 0.50 M NH3 with 0.50 M HCL results in a final endpoint and a concentration of 0.25 M NH4 Cl with essentially all the NH3 complete conversion to NH4^
an LC analysis with a 30.0cm column yields the tabulated data. what is the resolution between peaks A and B?
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