Question

<p>Dry air near sea level has the following composition byvolume: N₂, 78.08 percent;O₂, 20.94 percent; Ar, 0.93 percent;CO₂, 0.05 percent. The atmospheric pressureis 1.00 atm. (Hint: Since volume is proportional to the number ofmoles present, mole fractions of gases can be expressed as ratiosof volumes at the same temperature and pressure.)</p>
<div class="indent">(a) Calculate the partial pressure ofeach gas in atm. <br /><em>P</em>_N₂<br/><a href="javascript:SIGFIGS_HELP()"><imgtitle="WebAssign will check your answer for the correct number ofsignificant figures."src="http://www.webassign.net/v4images/sigfigs.gif" border="0"alt="WebAssign will check your answer for the correct number ofsignificant figures." /></a><span class="box_num"style="display: none; margin-right: -2px;" title="Points:/1">1</span><span id="RN_637359_16_0_645402"class="static">.8</span><imgid="mark_RN_637359_16_0_645402" title="Your answer is incorrect."src="http://www.webassign.net/wastatic/common/img/cross.png"alt="Your answer is incorrect." /><br /><spanstyle="color: #dd0000;">Your response is within 10% of thecorrect value. This may be due to roundoff error, or you could havea mistake in your calculation. Carry out all intermediate resultsto at least four-digit accuracy to minimize roundofferror.</span> atm<br /><em>P</em>_O₂<br/><a href="javascript:SIGFIGS_HELP()"><imgtitle="WebAssign will check your answer for the correct number ofsignificant figures."src="http://www.webassign.net/v4images/sigfigs.gif" border="0"alt="WebAssign will check your answer for the correct number ofsignificant figures." /></a><spanclass="qTextField"> <span class="box_num" style="display:none;" title="Points: 1/1">2</span><inputid="RN_637359_16_1_645402" dir="ltr" onkeyup="if(typeof change_mark== 'function'){change_mark('RN_637359_16_1_645402','.209')}"name="RN_637359_16_1_645402" size="10" type="text" value=".209"/></span><img id="mark_RN_637359_16_1_645402"title="Your answer is correct."src="http://www.webassign.net/wastatic/common/img/tick.png"alt="Your answer is correct." /> atm<br /><em>P</em>_Ar<br /><ahref="javascript:SIGFIGS_HELP()"><img title="WebAssign willcheck your answer for the correct number of significant figures."src="http://www.webassign.net/v4images/sigfigs.gif" border="0"alt="WebAssign will check your answer for the correct number ofsignificant figures." /></a><spanclass="qTextField"> <span class="box_num" style="display:none;" title="Points: 1/1">3</span><inputid="RN_637359_16_2_645402" dir="ltr" onkeyup="if(typeof change_mark== 'function'){change_mark('RN_637359_16_2_645402','.0093')}"name="RN_637359_16_2_645402" size="10" type="text" value=".0093"/></span><img id="mark_RN_637359_16_2_645402"title="Your answer is correct."src="http://www.webassign.net/wastatic/common/img/tick.png"alt="Your answer is correct." /> atm<br /><em>P</em>_CO₂<br/><a href="javascript:SIGFIGS_HELP()"><imgtitle="WebAssign will check your answer for the correct number ofsignificant figures."src="http://www.webassign.net/v4images/sigfigs.gif" border="0"alt="WebAssign will check your answer for the correct number ofsignificant figures." /></a><spanclass="qTextField"> <span class="box_num" style="display:none;" title="Points: 1/1">4</span><inputid="RN_637359_16_3_645402" dir="ltr" onkeyup="if(typeof change_mark== 'function'){change_mark('RN_637359_16_3_645402','.0005')}"name="RN_637359_16_3_645402" size="10" type="text" value=".0005"/></span><img id="mark_RN_637359_16_3_645402"title="Your answer is correct."src="http://www.webassign.net/wastatic/common/img/tick.png"alt="Your answer is correct." /> atm<br /> <br />(b) Calculate the concentration of each gas in moles per liter at0&#176;C.<br/>C_N₂<br/><a href="javascript:SIGFIGS_HELP()"><imgtitle="WebAssign will check your answer for the correct number ofsignificant figures."src="http://www.webassign.net/v4images/sigfigs.gif" border="0"alt="WebAssign will check your answer for the correct number ofsignificant figures." /></a><spanclass="qTextField"> <span class="box_num" style="display:none;" title="Points: /1">5</span><inputid="RN_637359_16_4_645402" dir="ltr" onkeyup="if(typeof change_mark== 'function'){change_mark('RN_637359_16_4_645402','9.2e-5')}"name="RN_637359_16_4_645402" size="10" type="text" value="9.2e-5"/></span><img id="mark_RN_637359_16_4_645402"title="Your answer is incorrect."src="http://www.webassign.net/wastatic/common/img/cross.png"alt="Your answer is incorrect." /><br /><spanstyle="color: #dd0000;">Your response differs significantly fromthe correct answer. Rework your solution from the beginning andcheck each step carefully.</span><em>M</em><br/>C_O₂<br/><a href="javascript:SIGFIGS_HELP()"><imgtitle="WebAssign will check your answer for the correct number ofsignificant figures."src="http://www.webassign.net/v4images/sigfigs.gif" border="0"alt="WebAssign will check your answer for the correct number ofsignificant figures." /></a><spanclass="qTextField"> <span class="box_num" style="display:none;" title="Points: /1">6</span><inputid="RN_637359_16_5_645402" dir="ltr" onkeyup="if(typeof change_mark== 'function'){change_mark('RN_637359_16_5_645402','9.2e-5')}"name="RN_637359_16_5_645402" size="10" type="text" value="9.2e-5"/></span><img id="mark_RN_637359_16_5_645402"title="Your answer is incorrect."src="http://www.webassign.net/wastatic/common/img/cross.png"alt="Your answer is incorrect." /><br /><spanstyle="color: #dd0000;">Your response differs significantly fromthe correct answer. Rework your solution from the beginning andcheck each step carefully.</span><em>M</em><br />C_Ar<br/><a href="javascript:SIGFIGS_HELP()"><imgtitle="WebAssign will check your answer for the correct number ofsignificant figures."src="http://www.webassign.net/v4images/sigfigs.gif" border="0"alt="WebAssign will check your answer for the correct number ofsignificant figures." /></a><spanclass="qTextField"> <span class="box_num" style="display:none;" title="Points: /1">7</span><inputid="RN_637359_16_6_645402" dir="ltr" onkeyup="if(typeof change_mark== 'function'){change_mark('RN_637359_16_6_645402','')}"name="RN_637359_16_6_645402" size="10" type="text"/></span> <em>M</em><br/>C_CO₂<br/><a href="javascript:SIGFIGS_HELP()"><imgtitle="WebAssign will check your answer for the correct number ofsignificant figures."src="http://www.webassign.net/v4images/sigfigs.gif" border="0"alt="WebAssign will check your answer for the correct number ofsignificant figures." /></a><spanclass="qTextField"> <span class="box_num" style="display:none;" title="Points: /1">8</span><inputid="RN_637359_16_7_645402" dir="ltr" onkeyup="if(typeof change_mark== 'function'){change_mark('RN_637359_16_7_645402','')}"name="RN_637359_16_7_645402" size="10" type="text"/></span><em></em></div>