document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=616946>Question 616946</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A new lab technician, on his first day on the job, drops his lab key into a large bottle of concentrated nitric acid, and key begins to dissolve. the mass of the key is 2.03 oz (1 oz=28.35g) and has a density of 6.347 g/cm^3. The acid dissolves the key at a rate of 0.00235 g/s. By the time the lab tech gets the key out of acid, 10.0 minutes have passed.What is the volume of the key by then?\r<BR>\n" );
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document.write( "I solved this <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10min%2A%2860sec%2F1min%29%2A%280.00235g%2F1+sec%29%2A%281oz%2F28.35g%29%2A%281g%2F2.03oz%29+=+0.025g ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+6.347g%2Fcm%5E3+=+0.025g%2Fv+=+3.9x10%5E%28-3%29+ ALIGN=MIDDLE  ALT=\"+6.347g%2Fcm%5E3+=+0.025g%2Fv+=+3.9x10%5E%28-3%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > but I feel like the answer is wrong.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #388034 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=388034\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "First calculate the number of grams of mass in the key before it went in the acid.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ 2.03\ \text{oz/key}\ \times\ 28.35\ \text{gm/oz}\ =\ 57.5505\ \text{gm/key}\">\r<BR>\n" );
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document.write( "Next, calculate the number of grams lost in 10 minutes:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ 10\ \text{min}\ \times\ 60\ \text{sec/min}\ \times\ 0.00235\ \text{gm/sec}\ =\ 1.41\ \text{grams lost}\">\r<BR>\n" );
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document.write( "Next, calculate the mass remaining after 10 minutes, i.e. what it <i>was</i> minus what it <i>lost</i>:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ 57.5505\ \text{gm/key}\ -\ 1.41\ \text{gm}\ =\ 56.1405\ \text{gm/(acid eaten key)}\">\r<BR>\n" );
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document.write( "Then divide the final mass by the density to calculate the volume:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{56.1405\ \text{gm}}{6.347\ \text{gm/cm^3}}\ \approx\ 8.85\ \text{cm}^3\">\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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