The Copper Cycle Lab Report

A Cycle of Copper Reaction

ABSTRACT

The purpose of this experiment was to bicycle copper through a series of different chemical

forms by reacting the copper with different chemicals. The percentage recovery came out to exist 17%.

INTRODUCTION

The purpose of this experiment was to cycle copper through 5 different reactions. The

different chemical reactions were atmospheric precipitation reactions, acid-base reactions, and

oxidation-reduction (or redox) reactions. Precipitation reactions occur when two solutions

containing soluble salt form an insoluble salt when combined and can assist make up one's mind the amount

of ions in the solution. Acid-base of operations reactions happen when there is an exchange of H+ ions with a

solution that is neutral or electrically charged and tin can be used to determine pH.

Oxidation-reduction (redox) reaction is when in that location is a transfer of electrons. The balanced

equation of reaction i was 4HNO3(aq) + Cu (south) →Cu(NO3)2(aq) + 2 H2o (l) + 2 NO2(thousand) and

was an oxidation-reduction reaction. The balanced equation of reaction two was

Cu(NO3)2(aq)+2NaOH (aq) →Cu(OH)2(s) + ii NaNO3(aq) and has a precipitation reaction.

Reaction iii was Cu(OH)ii(s) + oestrus →CuO (southward) + Water (l) and was a bit different because

Cu(OH)2(south) is known for beingness thermally unstable and in this specific reaction, heat was used

instead of any other chemic to create a reaction. The balanced chemical formula of reaction 4

was CuO(s)+H2SO4(aq) →CuSO4(aq) + H2O (50) and was an acid-base reaction. The balanced

formula for reaction 5 was CuSO4(aq) + Zn (s) →ZnSO4(aq) + Cu (south) and was an

oxidation-reduction reaction.

Data

Tabular array 1: Initial and Final Copper Masses

Mass of Copper Retrieved (one thousand)

Table two: Balanced Equations and Observations

Reaction ane:  4 HNO3(aq) + Cu (s)

→Cu(NO3)2(aq) + 2 H2O (fifty) + two NO2(g)

Observations: Almost immediately

after adding the nitric acid the copper

began to deliquesce and release nitrogen

dioxide in the course of nighttime orange

steam and turned the solution a teal/

blue colour.

The Copper Cycle Lab Report,

Source: https://www.studocu.com/en-us/document/portland-state-university/intro-chem-lab-i/lab-report-copper-cycle/7929657