Chapter 12: Problem 144
What volume does 35 moles of \(\mathrm{N}_{2}\) occupy at STP?
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A sample of oxygen gas is collected by displacement of water at \(25^{\circ} \mathrm{C}\) and 1.02 atm total pressure. If the vapor pressure of water is \(23.756 \mathrm{mm} \mathrm{Hg}\) at \(25^{\circ} \mathrm{C}\) what is the partial pressure of the oxygen gas in the sample?
Sulfur trioxide, \(\mathrm{SO}_{3},\) is produced in enormous quantities each year for use in the synthesis of sulfuric acid. $$ \begin{array}{c} \mathrm{S}(s)+\mathrm{O}_{2}(g) \rightarrow \mathrm{SO}_{2}(g) \\ 2 \mathrm{SO}_{2}(g)+\mathrm{O}_{2}(g) \rightarrow 2 \mathrm{SO}_{3}(g) \end{array} $$ What volume of \(\mathrm{O}_{2}(g)\) at \(350 .^{\circ} \mathrm{C}\) and a pressure of 5.25 atm is needed to completely convert \(5.00 \mathrm{g}\) of sulfur to sulfur trioxide?
Given each of the following sets of values for three of the gas variables, calculate the unknown quantity. a. \(P=1.034\) atm; \(V=21.2 \mathrm{mL} ; n=0.00432 \mathrm{mol}\) \(T=? \mathrm{K}\) b. \(P=? \mathrm{atm} ; V=1.73 \mathrm{mL} ; n=0.000115 \mathrm{mol} ; T=\) \(182 \mathrm{K}\) c. \(P=1.23 \mathrm{mm}\) Hg; \(V=?\) L; \(n=0.773\) mol; \(T=\) \(152^{\circ} \mathrm{C}\)
When ammonium carbonate is heated, three gases are produced by its decomposition. $$ \left(\mathrm{NH}_{4}\right)_{2} \mathrm{CO}_{3}(s) \rightarrow 2 \mathrm{NH}_{3}(g)+\mathrm{CO}_{2}(g)+\mathrm{H}_{2} \mathrm{O}(g) $$ What total volume of gas is produced, measured at \(453^{\circ} \mathrm{C}\) and 1.04 atm, if \(52.0 \mathrm{g}\) of ammonium carbonate is heated?
Convert the following pressures into mm Hg. a. 0.903 atm c. \(445 \mathrm{kPa}\) b. \(2.1240 \times 10^{6} \mathrm{Pa}\) d. 342 torr
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