Molar conversions - Study guides, Class notes & Summaries

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CHEM 103 FINAL EXAM Question 1 Click this link to access the Periodic Table. This may be helpful throughout the exam. 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x 10 -5 to ordinary form and explain your answer. 1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places = 8.453 x 10 2 2. Convert 3.21 x 10 -5 = negative exponent = smaller than 1, move decimal 5 places = 0. Question 2 Click this link to access the Periodic Table. ...

CHEM 103 FINAL EXAM Question 1 Click this link to access the Periodic Table. This may be helpful throughout the exam. 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x 10 -5 to ordinary form and explain your answer. 1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places = 8.453 x 10 2 2. Convert 3.21 x 10 -5 = negative exponent = smaller than 1, move decimal 5 places = 0.0000321 Question 2 Click this link to access the Periodic ...

Introduction to Moles: Student Exploration: Moles Gizmos Name: Date: Student Exploration: Moles Vocabulary: atomic mass, Avogadro constant, conversion factor, dimensional analysis, mole, molar mass, molecular mass, scientific notation, significant figures, unified atomic mass unit Prior Knowledge Questions (Do these BEFORE using the Gizmo.) In the image to the right, note a dozen eggs, a dozen donuts and a dozen roses. How many of each item do you have? 1...

Molar Conversions: Identifying the representative particle All nonmetals = molecule Includes any metal = Formula Unit Charged particle = Ion Element = Atom Molar conversion factors 1 mole = 6.02 *10^23 1 mole = molar mass of the element or compound 1 mole = 22.4 L of a gas at STP Significant figures Round to the number of significant figures in the value that they give u (ie: 2.4 moles would be 2 significant figures) Conversion factors don't affect the number of sig figs Round th...

CHEM 103 FINAL EXAM Question 1 Click this link to access the Periodic Table. This may be helpful throughout the exam. 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x 10-5 to ordinary form and explain your answer. 1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places = 8.453 x 102 2. Convert 3.21 x 10-5 = negative exponent = smaller than 1, move decimal 5 places = 0. Question 2Click this link to access the Periodic Table. This may b...

The Mole Concept is an essential topic in chemistry, particularly in the study of stoichiometry and quantitative relationships between chemical substances. It provides a framework for understanding the quantities of substances involved in chemical reactions and allows chemists to make accurate calculations. At its core, the Mole Concept revolves around the idea of a mole, which is a unit used to measure the amount of a substance. One mole of any substance contains a fixed number of particles,...

1. Both the hertz and the curie have dimensions of s−1. Explain the difference between these two units. Solution: The hertz is used for periodic phenomena and equals the number of “cycles per second.” The curie is used for the random or stochastic rate at which a radioactive source decays, specifically, 1 Ci = 3.7 × 1010 decays/second. 2. Advantages of SI units are apparent when one is presented with units of barrels, ounces, tons, and many others. (a) Compare the British and U.S....

Name: Jose Rivera Rodriguez Date: 02/24/23 – 02/25/23 Activity: Moles, Avogadro, and Molar Mass Prior Knowledge Questions 1. In the image, note a dozen eggs, a dozen donuts and a dozen roses. How many of each item do you have? 12 eggs, 12 donuts, and 12 roses. 2. Would a dozen of each object have the same mass? No 3. Suppose you have a dozen silver atoms, a dozen oxygen atoms, and a dozen lithium atoms. Even though you have the same number of each, will they all have the sam...

CHEM 103 Exam 1-6 Final - Complete Solutions, Graded A Exam 1-6 Question 1 1. Convert 1005.3 to exponential form and explain your answer. 2. Convert 4.87 x 10-6 to ordinary form and explain your answer. Answer: 1. Convert 1005.3 = larger than 1 = positive exponent, move decimal 3 places = 1.0053 x 103 2. Convert 4.87 x 10-6 =negative exponent =smaller than 1, move decimal 6 places = 0. Question 2 Using the following information, do the conversions shown...