Anyway, we developed a method for dtermining the concentration of a copper(II) ion solution. We put about 50mL of 6 M HNO3 and dropped a post-1983 penny in. We did the same thing for a pre-1983 penny. While waiting for the penny to be completely dissolved, 10 mL cuvettes of 0.0 ...
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iron. The Iron Age is the last of the three-ages system (Stone, Bronze, and Iron Ages) used to date historical eras in human history. Nowadays, we're more in the Steel/Aluminum/Copper Age, but iron is the principle component of steel, so we're still in a quasi-Iron Age, if you...
Shiny, reddish copper was the first metal manipulated by humans, and it remains an important metal in industry today. The oldest metal object found in the Middle East consists of copper; it was a tiny awl dating back as far as 5100 B.C. And the U.S. penny was originally made of pu...
I cut one in half (actually I ground half of it away with a bench grinder), and this is what it looks like inside: According to the USGS letter, the core is some mixture of copper oxides, but clearly the bulk of it is metallic copper. I made aQuickTime VR 3D imageof the sliced ...
wow, a lot of people are doing the same lab report. I'm also doing the penny lab report and have to find the density of copper in a penny. David B - Brownsville, Tennessee September 3, 2008 Shhh, don't tell David B's teacher that pennies have been made of zinc (with a very th...
If you want to shine a penny coin...and perform MAGIC at the same time...drop a Penny in a glass containing "Coke" (c)...[yep...The Pause That Refreshes kind]. Set it aside...and check it in a week or so. Leave it set long enough and the Penny Disappeared! (Dissolved). ...
Copper isotopic composition is altered in cancerous compared to healthy tissues. However, the rationale for this difference is yet unknown. As a model of Cu isotopic fractionation, we monitored Cu uptake in Saccharomyces cerevisiae, whose Cu import is si
Yang engineered cells that lacked the enzyme entirely using genetic editing and monitored their development. When chemically induced to become mature fat cells, these lab-grownmouse cellslooked remarkably similar to cells deprived of copper in the earlier experiments—they grew to about twice the size...
stock markets every day.Insiderslab.com strives to turn this massive raw data into usable information that investors can use to do better research for their investments.Today Insiderslab.com issues new research reports on large insider trades found in the above Blue Chips or Penny Stock companies...