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Explain the empirical formula of a compound is CH. At 200 degrees Celsius, 0.145 g of this compound occupies 97.2mL at a pressure of 0.74atm, Explain what is the molecular formula of the compound?
A weak acid (HA) has a pKa of 4.303. If a solution of this acid has a pH of 4.990, what percentage of the acid is not ionized? (Assume all H in solution came from the ionization of HA.)
The reaction below shows the acid catalyzed Sn2 reaction between 1-butanol and sodium acetylide. Will this reaction proceed as depicted. Explain.
Calculate the pH of 9.2E-8 M NaOH, ignoring activity coefficients. Report the pH using the correct number of decimal places.
How many grams of N2 are required to react with 2.30 moles of Mg in the following process?
The structure of HxWO3 could contain H+ ions or OH- ions. Which do you think is more likely? Why?
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84
For the copper zinc cell the potential at 25 degrees C is 1.10 volts. The reaction is: Cu++ (aq) + Zn(s) = Zn ++ (aq) + Cu(s) Calculate the equilibrium constant for this reaction (a wire is connected and electrons flow between the electrodes)
A solution is prepared by dissolving 3.65 g of an unknown nonelectrolyte in 15.00 g of cylcohexane (tf = 6.6 oC and kf = 20.0 oC/m).
a sculptor has prepared a mold for casting a bronze figure. the figure has a volume of 245 ml. if bronze has a density
What are all the possible products of monochlorination of ethylcyclohexane. Compare them to the products of monobromination of ethycyclohexane.
Calculate the partial pressure of propane in a mixture that contains equal masses of propane (C3H8) and butane (C4H10) at 20.0 °C and 738 mm Hg.
A solution is made that is 1.1×10^?3 M in Zn(NO3)2 and 0.150 M in NH3. After the solution reaches equilibrium, what concentration of Zn2+(aq) remains. [Zn2+]
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