Copper cycle lab report answers

Answer the following questions before continuing. Copper Cycle Teachers Guide 4 Advanced Preparation.

First reaction involves reaction between the copper and nitric acid and copper changed from elemental state to an aqueous.

Copper cycle lab report answers. A Cycle of Copper Reaction. ABSTRACT The purpose of this experiment was to cycle copper through a series of different chemical forms by reacting the copper with different chemicals. The percent recovery came out to be 17.

INTRODUCTION The purpose of this experiment was to cycle copper through five different reactions. The Copper Cycle - Lab Report Experimental Observations and Chemical Equations Copper-containing substances. Use the following chart to list the substances formed at each step and your observations on its appearance.

If a solid appears to have dissolved into the solution you can assume that ions are present in aqueous solution. Record observations for all of the steps I-V of the copper cycle in your lab book. Be sure to label each step I-V.

The observations for each step should include. Describe the reaction between HNO3 and the Cu metal in your lab report. Dilute the resulting solution with about 10 mL of deionized water.

Describe the appearance of the. The Copper Cycle By. During this lab were given the task to put Copper through the process of many different experiments.

But the purpose of all of this was to prove or disprove whether the Laws of conservation of matter is true. Copper Cycle Lab Report Introduction. The purpose of this experiment was to convert copper wire into different states using a variety of methods including oxidation-reduction reactions and acid-base reactions.

Then at the end of the cycle one should end up with solid elemental copper again which theoretically has the same mass as the original sample. Copper Lab 3 Pages 109 - 115 Pre-lab pages 111 - 112 Post lab questions page 114 - 115. The end product will be your original copper sample making this a cycle of reactions.

With careful attention to quantitative lab. Copper sulfate is a commonly included chemical. Oxidizing Copper Metal with Concentrated Nitric Acid HNO3aq The first step involves transforming Cu metal to copperII ions Cu2 using concentrated nitric acid HNO3aq.

At the same time the nitrate ions NO3 are converted to nitrogen dioxide NO 2 a brown gas. The presence of Cu2aq makes the solution blue. Copper Cycle Lab Report 2117 Abstract In the Copper Cycle Lab we observed a sequence of aqueous reactions of solid copper and its reaction formed.

We first weighed the solid copper and then after going through the cycle of copper being a solid compound or in ionic form. The percent recovery at the end of the lab was 978. Intro The purpose of this experiment was to observe a sequence of.

This lab is designed around developing observation skills. Introduction In this lab the procedure began with copper and the result was a copper-covered nickel. Despite all the materials used and steps taken our result was the same as our beginning.

This is the Copper Cycle. Despite the chemical changes and reactions which is when a. Start studying Lab 3.

A Series of Chemical Reactions. Learn vocabulary terms and more with flashcards games and other study tools. CHEMICAL REACTIONS OF COPPER AND PERCENT YIELD KEY Objective To gain familiarity with basic laboratory procedures some chemistry of a typical transition element and the concept of percent yield.

Apparatus and Chemicals 05 g piece of no. 18 copper wire evaporating dish 250 mL beaker 2 weighing paper concentrated HNO. A Cycle of Copper Reactions In this experiment you will begin with the element copper and carry out a series of chemical.

Answer the following questions before continuing. If this is at the conclusion of a lab period allow the methanol to evaporate until the following week. If this is at the beginning of a lab period allow it to.

CuO s 2 HCl aq — CuCl 2 aq H 2 O l In the above reaction you mixed the black CuO with 15 mL of HCL as called for in the directions. The solution turned an aqua color and all of the black solid disappeared. What was the limiting reactant.

Copper Cycle Teachers Guide 4 Advanced Preparation. The teacher should stage necessary equipment in a central location or at lab stations as appropriate. Approximate amounts of the starting material for each cycle should be pre-weighed and provided in a small dish or container.

Lab notes lab performance and post-lab report Safety. Goggles closed-toe shoes lab coat long pantsskirts and sleeves. Latex or nitrile gloves recommended use care with acids.

To convert elemental copper into di erent copper compounds by a series of chemical reac-tions regenerating elemental copper at the end of the copper. Experiment 11 A Cycle of Copper Reactions In this experiment you will perform and observe several reactions of copper. This is a cycle of reactions because you start and end with the same substance copper metal.

In the first reaction copper metal is. November 3rd 2009 Lab Report 3. The purpose of the experiment is to cycle solid copper through a series of five reactions.

At different stages of the cycle copper was present in different forms. First reaction involves reaction between the copper and nitric acid and copper changed from elemental state to an aqueous. Copper will undergo many types of reactions.

In this experiment you will observe a sequence of copper reactions. The sequence begins with copper metal and ends with copper metal so it is called a cycle of copper reactions. Observations will be made for each reaction.

After sulfuric acid was added to the beaker copper was found as copper ions with a 2 charge instead of the previous copperii oxide form. In the final step of the lab when the copper precipitate was washed zinc ions were removed. The previous reaction that took place involved aqueous copperii sulfate and.

The Copper Cycle Lab - Free download as Word Doc doc PDF File pdf Text File txt or read online for free. The purpose of the copper-to-copper lab was to gain experience with identifying different types of chemical reactions more specifically those involving copper through which we learned the essentials of the law of conversion of mass theory. Lab Experiment On The Copper Cycle.

A series of reactions that convert a piece of copper metal via several different copper- containing compounds back into its original elemental form will be observed. Copper wire was dissolved in nitric acid. NaOH was then added to the dissolved copper solution precipitating into Cu OH2.

Chemistry 11 Copper Cycle Stoichiometry Assignment 1 Consider the reaction below which is the first step in the process of recycling copper. CuNO32aq 2NO2g 2H2Ol a If a student began the experiment with 0020g of copper metal what volume in mL of concentrated 158M HNO3 would be required to complete the. November 3rd 2009 Lab Report 3.

The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle copper was present in different forms. First reaction involves reaction between the copper and nitric acid and copper changed from elemental state to an aqueous.

Lab notes lab performance and post-lab report. You will carry out the Copper Cycle using the ordering you created in discussion. Reaction Specific Guidelines for Reaction.

Cus HNO 3 aq This reaction must be performed in the back of a fume hood.