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Question- Draw the curve of pH vs mL titrant added for the titration of a weak acid with a strong base. Label the endpoint and explain why it does not occur at pH=7. Label the buffer region.
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if it takes 6.02 kJ of heat energy to melt a mole of ice, how much heat is absorbed when 6.30 g of water melts?
If 0.250 L of aqueous solution with a density of 1.00 g/mL contains 13.7 micrograms of pesticide, express the concentration of pesticide in ppm
A person suffering from hyponatremia has a sodium ion concentration in the blood of 0.120 M and a total blood volume of 5L. What mass of sodium chloride would need to be added to the blood to bring the sodium ion concentration up to 0.136 M
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How would the stereochemical outcome of the bromination reaction differed if we would have started with cis-cinnamic acid
50mL of 0.1M aqueous solution of some organic compound was brought in contact with 7mL of octanol at 20oC. After equilibration GC analysis of octanol phase shows component concentration of 0.4M. Explain what is the portioning coefficient of this c..
In the synthesis of benzopinacol via photoreduction of benzophenone, why does benzopinacol precipitate from the solution despite being an alcohol
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How many grams of urea [(NH2)2CO] must be added to 345 g of water to give a solution with vapor pressure 2.45mmHg less than that of pure water at 30 degrees Celsius?
Chlorine trifluoride is used in processing nuclear reactor fuel. It has a vapor pressure of 29.1 torr at -47.0°C and its heat of vaporization is 30.61 kJ/mol.
Use the ideal gas equation of state to estimate the molar volume in m3/mol and the density of ari in kg/m3 at 40 C and a gauge pressure of 3.0 atm.
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