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Classify the following salt solution as neutral acidic or basic. Explain and use quilibrium value constants to support your answer
Na2HSO3. Ka= 6.3x10/\(-8)
Given that the pKa for Acetic Acid is 4.77, calculate the expected pH of the buffer solutions using the Henderson-Hasselbalch equation and the concentrations of Acetic Acid and Acetate added to the 250 ml Erlenmeyer flask.
What is the main structural feature of the azo dyes that causes them to be colored compounds? Methyl Orange is an acid-base indicator. In dilute solution at pH greater than 4.4, it is yellow.
an An automobile gasoline tank holds 42 kg of gasoline. When the gasoline burns , 168 kg of oxygen are consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced
explain why the coupling of the diazonium salt with a phenol or an aromatic amine occurs at the para position.
What volume of 2.0 M NaClO must be diluted with water to prepare 500.0 mL of 0.10 M NaClO?
Which halide has he lowest boiling point? Explain your choices. (CH3)2CH2Br vs CH3CH2CH2Br c. Which is a better nucleophile? Explain our choice.
A sample of oxygen gas at a pressure of 0.996 atm and a temperature of 195oC, occupies a volume of 714 mL. If the gas is cooled at constant pressure until its volume is 544 mL, the temperature of the gas sample will be oC.
The vapor pressure of a mixture of 400 g of carbon tetrachloride and 43.3 g of an unknown compound is 137 torr at 30 °C. The vapor pressure of pure carbon tetrachloride at 30 ºC is 143 torr
The dispersion of a diffraction grating, such as the one shown at the right, is the angle of separation per μm of wavelength, Î"Φ /Î"λ
The mass of an average blueberry is 0.72 g and the mass of an automobile is 1900 kg. Find the number of automobiles whose total mass is the same as 1.0 {rm mol} blueberries.
Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell.
What is the total vapor pressure 4 at 20° C of a liquid solution containing 0.30 mole fraction benzene, C6H6, and 0.70 mole fraction toluene, C6H5CH3? Assume that Raoult's law holds for each component of the solution.
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