Emilly+and+Jessie

=HNO₃ = || = = ||  || = = =3 Cu + 8 HNO3 = 3 Cu(NO₃)₂ (cooper(II) nitrate)= = = =+ 2 NO + 4 H2O = || = = ||  || =trate (Cu(NO₃)₂) = = = =2NaOH +Cu(NO₃)₂=Cu(OH)₂+2NaNO3 = = = =Cooper(II) hydroxide Cu(OH)₂ (blue) = || = = = = ||  || = = =It turned black by itself = = = =CuO turned black = || = = ||  || = = =We added HCl and it turned from dark brown = =to light blue (CuCl2) = || = = ||  || =<span style="color: #800080; font-family: Georgia,serif;">We expected to consume HCl = =<span style="color: #800080; font-family: Georgia,serif;">by adding NaOH and get H2O from = =<span style="color: #800080; font-family: Georgia,serif;">the neutralization reaction. = = = =<span style="color: #800080; font-family: Georgia,serif;">(HCl+2NaOH=NaCl2+H2O) = =<span style="color: #800080; font-family: Georgia,serif;">but we added too much NaOH so it tured back = =<span style="color: #800080; font-family: Georgia,serif;">to this color(same as step 3) .. = || =<span style="color: #800080; font-family: Georgia,serif;">~(=W=)~ = ||  || = = =<span style="color: #800080; font-family: Georgia,serif;">copper II = || =<span style="color: #800080; font-family: Georgia,serif;"> = ||  || =<span style="color: #800080; font-family: Georgia,serif;"> = ||  || =<span style="color: #800080; font-family: Georgia,serif;">( Zn+CuSO4=ZnSO4+Cu) = =<span style="color: #800080; font-family: Georgia,serif;">The copper (CuII ->blue) has been replaced by = =<span style="color: #800080; font-family: Georgia,serif;">Zinc and Copper has turned to simple substance = || =<span style="color: #800080; font-family: Georgia,serif;"> = =<span style="color: #800080; font-family: Georgia,serif;"> = ||  || =<span style="color: #800080; font-family: Georgia,serif;">( we realized that we should decant more than = =<span style="color: #800080; font-family: Georgia,serif;">one time after we dry it, because there were = =<span style="color: #800080; font-family: Georgia,serif;">still some zinc with the copper) = || =<span style="color: #800080; font-family: Georgia,serif;"> = ||  || =<span style="color: #800080; font-family: Georgia,serif;">( be can't heat it directly with the flame = =<span style="color: #800080; font-family: Georgia,serif;">because if it's too hot, copper will react with oxygen = =<span style="color: #800080; font-family: Georgia,serif;">and turn into CuO = =<span style="color: #800080; font-family: Georgia,serif;">< Cu+O2=2CuO > ) = || =<span style="color: #800080; font-family: Georgia,serif;"> = ||  || =<span style="color: #800080; font-family: Georgia,serif;">we guess is the zinc that we didn't decant = =<span style="color: #800080; font-family: Georgia,serif;">completely in step 15 reacted with H2SO4 = =<span style="color: #800080; font-family: Georgia,serif;">we mass the copper (not pure) = =<span style="color: #800080; font-family: Georgia,serif;">52.133 g = || =<span style="color: #800080; font-family: Georgia,serif;"> = ||  || = = = =
 * =<span style="color: #800080; font-family: Georgia,serif;">S**TEP** = || =**<span style="color: #800080; font-family: Georgia,serif;">DESCRIPTION **= || =**<span style="color: #800080; font-family: Georgia,serif;">PICTURES **= || =**<span style="color: #800080; font-family: Georgia,serif;">ANALYSIS **= ||
 * =<span style="color: #800080; font-family: Georgia,serif;">1 = || =<span style="color: #800080; font-family: Georgia,serif;">Cooper (Cu) 0.575 g =
 * =<span style="color: #800080; font-family: Georgia,serif;">2 = || =<span style="color: #800080; font-family: Georgia,serif;">We added nitric acid (HNO₃) to the cooper (Cu) =
 * =<span style="color: #800080; font-family: Georgia,serif;">3 = || =<span style="color: #800080; font-family: Georgia,serif;">We added sodium hydroxide with cooper(II) ni- =
 * =<span style="color: #800080; font-family: Georgia,serif;">4 = || =<span style="color: #800080; font-family: Georgia,serif;">Cu(OH)2=△=CuO+H2O =
 * =<span style="color: #800080; font-family: Georgia,serif;">5 = || =<span style="color: #800080; font-family: Georgia,serif;">Drain the water carefully = || =<span style="color: #800080; font-family: Georgia,serif;">[[image:Screen Shot 2013-05-16 at 3.52.26 PM.png]][[image:Screen Shot 2013-05-16 at 3.52.33 PM.png]] = ||  ||
 * =<span style="color: #800080; font-family: Georgia,serif;">6 = || =<span style="color: #800080; font-family: Georgia,serif;">CuO+HCl =CuCl2+H2O =
 * =<span style="color: #800080; font-family: Georgia,serif;">7 = || =<span style="color: #800080; font-family: Georgia,serif;">Neutralize HCl with NaOH =
 * =<span style="color: #800080; font-family: Georgia,serif;">8 = || =<span style="color: #800080; font-family: Georgia,serif;">greenish blue precipitate =
 * =<span style="color: #800080; font-family: Georgia,serif;">9 = || =<span style="color: #800080; font-family: Georgia,serif;">filter with filter paper = || =<span style="color: #800080; font-family: Georgia,serif;">[[image:Screen Shot 2013-05-16 at 7.24.15 PM.png width="341" height="249"]][[image:bignotebook/Screen Shot 2013-05-16 at 7.22.33 PM.png width="284" height="246"]] =
 * =<span style="color: #800080; font-family: Georgia,serif;">10 = || =<span style="color: #800080; font-family: Georgia,serif;">Pour acid (H2SO4) = || =<span style="color: #800080; font-family: Georgia,serif;">[[image:Screen Shot 2013-05-24 at 6.29.20 PM.png]][[image:Screen Shot 2013-05-24 at 6.29.44 PM.png]] = ||  ||
 * =<span style="color: #800080; font-family: Georgia,serif;">11 = || =<span style="color: #800080; font-family: Georgia,serif;">CuSO4 clear light blue = || =<span style="color: #800080; font-family: Georgia,serif;">[[image:bignotebook/Screen Shot 2013-05-24 at 6.19.09 PM.png]][[image:Screen Shot 2013-05-24 at 6.15.54 PM.png width="351" height="276"]] = ||  ||
 * =<span style="color: #800080; font-family: Georgia,serif;">12 = || =<span style="color: #800080; font-family: Georgia,serif;">Zn we put two pieces of zinc into CuSO4 = || =<span style="color: #800080; font-family: Georgia,serif;">[[image:bignotebook/Screen Shot 2013-05-24 at 6.31.01 PM.png]][[image:Screen Shot 2013-05-24 at 6.31.18 PM.png]] = ||  ||
 * =<span style="color: #800080; font-family: Georgia,serif;">13 = || =<span style="color: #800080; font-family: Georgia,serif;">Copper Cu covering the Zinc = || =<span style="color: #800080; font-family: Georgia,serif;">[[image:Screen Shot 2013-05-24 at 6.31.39 PM.png width="642" height="354"]] = ||  ||
 * =<span style="color: #800080; font-family: Georgia,serif;">14 = || =<span style="color: #800080; font-family: Georgia,serif;">The blue liquid turns clearer =
 * =<span style="color: #800080; font-family: Georgia,serif;">15 = || =<span style="color: #800080; font-family: Georgia,serif;">Decant one time =
 * =<span style="color: #800080; font-family: Georgia,serif;">16 = || =<span style="color: #800080; font-family: Georgia,serif;">Dry the copper with the heat of the steam =
 * =<span style="color: #800080; font-family: Georgia,serif;">17 = || =<span style="color: #800080; font-family: Georgia,serif;">We didn't expected the blue chemical over the copper, =
 * 18 || =<span style="color: #800080; font-family: Georgia,serif;">0.575 g-50.542g= = || [[image:Screen Shot 2013-06-07 at 7.47.53 AM.png width="282" height="326"]] ||  ||