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25.00 mL of 0.030 M dipotassium oxalate is titrated with 0.100 M HClO4. At what volume of HClO4 being added is the system in the first and second buffer region?
If the mass of the metal cylinder pictured below is 18.71 g, calculate the density of the cylinder.
Calculate the calorimeter constant. The enthalpy of combustion of antracene is -7061 kJ/mol.
At 25C, the vapor pressure of diethyl ether is higher than the vapor pressure of its isomer n-butanol. Why?
Write a net ionic equation for the reaction that occurs when aqueous solutions of acetic acid and potassium hydroxide are combined.
Compute the number of kilograms of hydrogen that pass per hour through a 5-mm-thick sheet of palladium having an area of 0.20 m2 at 500°C. Assume a diffusion coefficient
List possible manipulation errors that might contribute to the following errors in results
The mass of an electron is 9.11\times 10^{-31}~\rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31\times 10^{-10}~\rm m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00\times10..
Calculate the enthalpy change (in kJ) associated with the conversion of 25.0 grams of ice at -4.00°C to water vapor at 106.0°C. The specific heats of ice, water,
1.30 grams of ammonium nitrate is combined with 74.0 grams of h2o in a coffee-cup calorimeter nbspat an initial
multiple choice questions in radioactive decay.1.an alpha alpha particle is essentially a
Molar Mass of Sulfur based on molality, What would the molar mass of sulfur be based on the following data and information?
A compound has 2 ionizable groups, with pKas of 6.2 and 9.5. A 1.0 M solution of this compound (100 mL total volume) is found to have a pH of 6.8. A biochemist adds 60 mL of 1.0 M HCl to this solution. The solution pH is now:
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