Determination of % Composition of Pennies Using Redox and Double Displacement (Precipitation) Reactions Introduction: Oxidation involves the gain of electrons of hydrogen or the loss of oxygen or decrease in oxidation state. If zinc completely reacts with HCL‚ then the theoretical yield of copper should be equivalent to the actual yield. Purpose: In this lab‚ we will determine the percent composition of a modern (post-1982) penny by using a strong acid to react and dissolve the zinc
Premium Chemistry Concentration Chemical reaction
determine if the claims made by the US government‚ regarding the spectrophotometric analysis of a copper penny hold true. Before 1982‚ the Lincoln cent contained 95% copper and 5% various mixtures of zinc and tin. As the cost of copper increased‚ the cost to produce the penny was more than the actual face value of the penny. This caused the US government to change the composition of the penny. The pennies we know today consist of a copper coating‚ which contains mostly zinc metal‚ and has a 2.5% mass.
Premium Chemistry Currency United States dollar
male jobs and roles. This ties in with what I will be discussing of the historical concepts of gender discrimination with social normalcies and femininity to sports involving women and the correlation of the movie A League of Their Own directed by Penny Marshall. The
Premium Gender United States Women's rights
Zippittelli v. J.C. Penney Co. IN THE UNITED STATES DISTRICT COURT FOR THE MIDDLE DISTRICT OF PENNSYLVANIA February 28‚ 2007 JOANNE ZIPPITTELLI‚ PLAINTIFF v. J.C. PENNEY COMPANY‚ INC.‚ J.C. PENNEY TELEMARKETING‚ INC.‚ AND JAMES JOHNSON‚ DEFENDANTS The opinion of the court was delivered by: Judge James M. Munley United States District Court MEMORANDUM Before the court is defendants’ motion for summary judgment (Doc. 18). Having been fully briefed and argued‚ the matter is ripe for disposition
Premium Discrimination
J.C. Penny is a company committed to the highest level of corporate citizenship as outlined by (JC. Penney Company News‚ 2017). The company commits itself to a diverse workforce and as of 2016‚ more than half of the J.C. Penney associate populations were minorities‚ adding that CEO Ellison is one of only five African-American CEO’s in the Fortune 500. J.C. Penney has also logged more than 67‚700 volunteer hours in community relations by donating their time and skills to benefit local non-profit
Premium Management Marketing Strategic management
Response to William Safire’s “Abolish the Penny” The saying “A penny for your thoughts” means a lot to society; however‚ William Safire does not agree with this notion. In Safire’s “Abolish the Penny‚” he argues that pennies are a burden to the society and should be completely taken out of the circulation. Safire states‚ “The time has come to abolish the outdated‚ almost worthless‚ bothersome‚ and wasteful penny” (515). He says that the penny is a scam by the government that makes something look
Premium United States dollar Luck
pile of pennies looking for the correct amount of change. To get rid of the mess and frustration you have to get rid of pennies. Although pennies are messy it is still a debate on whether the penny should be used in United States currency. Pennies are such a nuisance‚ businesses are losing money over them. Retailers want to make money not lose it on pointless coins. Stated from source number two‚” counting pennies could add up to over $700 million per year nationwide.” Counting pennies is such
Premium United States Money Economics
How Important is the Penny? The one-cent coin‚ commonly known as the penny‚ was made legal by the Coinage Act of 1864. On the penny that we carry in our pockets‚ is the face of the 16th President of the United States‚ Abraham Lincoln. Throughout the years‚ the penny has helped shape our culture‚ by giving us sayings and idioms‚ such as ¨a penny for your thoughts¨ and ¨not one red cent”. Over the years‚ the penny has seen many things‚ yet now a conflict has arisen: Should the United States keep producing
Premium Marketing Coffee Poverty
dogs housed at the shelters. The campaign ("Pennies for Pets") creates awareness of the Society’s mission and passion for our funy friends. The Society depends on the annual fund raiser to maintain the shelters‚ provide food and medical care for the orphaned cats and dogs in our community. The Society relies on local businesses‚ individuals‚ and students to solicit donations and promote the annual campaign. This year’s fund raiser was a huge success. Pennies for Pets created a strong liaison between
Premium High school Education School
Identification and Evaluation of Alternatives The following alternatives to Penny Thomas’s Marketing plan decisions incorporate aspects of Target Market‚ Store Location‚ and Promotional Campaign. Thomas’s alternatives contain: 1. Target Market a. Families b. Young Adults c. Women 2. Store Location a. Vaughan b. Toronto Annex Area c. The Beaches d. Oakville 3. Promotional Campaign a. Toronto Star b. Now Magazine c. 104.5 Chum FM
Premium Marketing Sales Customer service