PENNY DENSITY LAB CHEMISTRY ANSWERS
Copper Penny Lab - PLEASE help me answer this question
Question & AnswerRelated QuestionsQuestionCopper Penny Lab - PLEASE help me answer this question!? I did a chemistry lab in which i heated copper pennies in sodium hydroxide solution (changed the copper to "silver"), then heated it on hot plate (changed the "silver" to "gold"). AnswerThe pennies were not changed into gold or silver. I think you left out the fact that when the pennies were placed in the NaOH there was also some zinc in there. The masses would not change in a noticeable manner, the experiment was doSee more on answersoStatus: OpenPublished: Mar 31, 2011Answers: 2[PDF]
Sample Traditional Lab Report - Density of Pennies
- Water retained by the pennies may have increased the volume measurements. Conclusions The density of pennies made before 1982 was measured to be 8 g/mL, while the density of pennies made after 1982 was measured at 6 g/mL. This confirms our hypothesis stating that the pre-1982 pennies would be more dense.[DOC]
Density of the Penny - anderson1
Web viewchem LAB: DENSITY OF A PENNY Purpose: Determine the densities of pennies which date from 1983 and later and of pennies from 1981 and earlier. Materials List: Graduated Cylinder Water. Balance Pennies. Background: Density is mass per unit volume (D = M / V). The density of an object can be determined from the mass and volume of that object.
Density of Pennies Lab - YouTube
Click to view17:36Sep 02, 2016Measuring Density of Small Irregular Objects - Duration: 8:22. Cody'sLab 362,158 viewsAuthor: Mr Belland's HHS ChemistryViews: 3
Chemistry Penny Lab | Density | Measurement
Chemistry 1-4. 3 October 2010. Penny Density Lab. Up until sometime in the late twentieth century, the U.S. penny was about 95% copper. Because the value of copper in a penny became greater than the monetary value of one cent, the government began to make pennies that were 97.5% zinc.[PDF]
Penny Density Lab: Formal Lab Report Support Sheet
Penny Density Lab: Formal Lab Report Support Sheet *WARNING: This sheet is designed to help students avoid common mistakes and errors when writing the formal lab report for the Penny Density Lab. You should use this in conjunction with the formal lab report packet because this does not include all parts that should be in each section!
(DOC) Chemistry Lab: DENSITY OF A PENNY | Mehedi Hasan
(8 pts) Penny 1 Penny 2 π ()2 (0) = π() 2 (0) = o V= 0 mL V= 0 mL B. Find the density of each penny by dividing the mass by the volume, be sure to use the correct number of significant digits and with correct units.
Penny Lab Review Flashcards | Quizlet
Penny Lab Review. STUDY. PLAY. Observations of Part 1 the penny. The NaOH dissolved the zinc. (that was what made the water murky) And small pieces of zinc adhered to the penny (coated) It was a physical change because no NEW color was created. Look at the characteristic property: melting point, density and compare it to real gold. See
chemistry lab question.t pennies? | Yahoo Answers
Aug 22, 2009Therefore, the simple answer is no, pennies are not made of copper, at least not entirely. Density is 99/19 g/cm^3 = 5 g/cm^3 but Cu has a density of 8 g/cm^3 so they cannot be pure copper -- something with a much lower density is also in the coins.Status: OpenAnswers: 4
Copper Penny Lab Report - measuring density. - University
Copper Penny Lab Report - measuring density. = 7.5 g/mL 35 (4 + 32 + 50) = 88 g 12.0 mL (88 g / 12.0 mL) = 7.4 g/mL Table 6: Pennies Minted During 1943 Number of Pennies Mass of Pennies Volume of Pennies Density (Mass/Volume) 2 5 g 2.0 mL (5 g / 2.0 mL) = 2.8 g/mL 15 (5 + 35) = 41 g 6.0 mL (41 g / 6.0)..
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