document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1060149>Question 1060149</A>: <I><SPAN STYLE=\"word-break: break-all;\"> H2O is a molecule with a bent shape. The bond angle between the two adjacent hydrogen atoms is 104.5° and the distance between them is 1.516Å. What is the length of the O-H bonds? Round your answer to 4 significant digits.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #675198 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=675198\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> H2O is a molecule with a bent shape. The bond angle between the two adjacent hydrogen atoms is 104.5° and the distance between them is 1.516Å. What is the length of the O-H bonds? Round your answer to 4 significant digits.<BR>\n" );
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document.write( "It's an isosceles triangle.<BR>\n" );
document.write( "--> a right triangle with one leg = 1.516/2 = 0.758 A and the angle opposite = 104.5/2 = 52.25 degs.<BR>\n" );
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document.write( "The O-H bond is the hypotenuse.<BR>\n" );
document.write( "sin(52.25) = 0.758/hyp<BR>\n" );
document.write( "hyp = 0.758/sin(52.25)<BR>\n" );
document.write( "=~ 0.8278 Å<BR>\n" );
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