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<p>[QUOTE=&quot;AWORDCREATED, post: 1803335, member: 52245&quot;]Good information, did you catch the final weight of the coin, and the volume of acid, and for quantitative analysis the concentration of Cu in the acid would have been nice to correlate to the loss off the cent?&nbsp; Final pH would have interesting to correlate to stoichiometry - change in log of the hydrogen ion concentration vs theoretical water evolved.</p><p><br /></p><p>You didn&#039;t add water to the acid did you?&nbsp; Never be placid - add water to acid <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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