Exp 7 - Copper Lab

Exp 7 - Copper Lab - Ryan O'Hearn Chemical Principles I Lab...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Ryan O’Hearn Chemical Principles I Lab - 1011.205.51 Lab 7 – Copper: Reactions and Percent Recovery 15:07:42 Purpose To study various chemical reactions and the process to dissolve and then later recover copper through a series of simple chemical reactions. We will start with copper, and then dissolve it into ions, to copper oxide with heat, dissolve CuO with acid, and then reduce copper ion back to elemental copper with zinc. In the end of the experiment, the law of conservation of mass and matter should apply and there should be just as much copper as we started with. Procedure See “Experiment 7 – Copper: Reactions and Percent Recovery” Chemistry 205 Lab Manual Data Tables, Graphs Starting mass of copper = 0.358 grams. Steps and their observations: Step in Procedure Observations Mixed 3mL nitric acid (HNO 3 ) with copper…then added 10mL distilled water to beaker. Green liquid, rusty-red gas, then blue liquid after adding water. Add 8mL of 6M sodium hydroxide (NaOH). Formed chunky blue solid and was warm. Add enough distilled water to bring solution to 100mL mark in beaker and boil for five minutes. Blue solid changed to dark brown then black power while beaker moved around. Add 30mL of 3M sulfuric acid (H
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

Exp 7 - Copper Lab - Ryan O'Hearn Chemical Principles I Lab...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online