04 Mole and Molar Mass

04 Mole and Molar Mass - Question from Last Time A)$6.49...

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1 1 Question from Last Time Use unit conversion You travel back in time to 1859 when beer kegs were sold by the firkin and tierce . If a firken of beer costs $1.39, how much would you pay for 3 tierce of beer? (4.667 firken = 1 tierce) A)$6.49 B)$9.46 C)$19.46 D)$29.94 $19.46 f 1 39 . 1 $ t 1 f 4.667 t 3 Validate? (1) unit analysis (2) t > f so t cost > f cost 2 Question from Reading for Today Which one of the following statements A – C is not correct? If all are correct respond (D). A) Atoms of the same element have the same numbers of protons in their nuclei. B) In chemistry, the mole is a counting unit specifying the number of particles. C) The molar mass is the mass in grams of one mole of particles. D) All of the above statements are correct.
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2 4 Assignment from Last Time Homework from Guided Explorations 01-2 pp 9-10, items 2-5 p. 10 Got It! Questions Solutions are posted on Blackboard in the Assignments section. Such questions can be on the LUCID quiz and the Exams. OWL assignment due today has been extended until 1:00 PM Friday! 5 Class notes posted on Bb often include helpful supplemental information. For example, the posted notes from Friday include presentations on Significant Figures and the The Periodic Table
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6 GE 02-2 The Mole and Molar Mass What do you think? p 13 Is it possible to determine the number of objects in a sample from their mass? If so, how? If not, why not? 7 Exploration pp 13-14 1 min/question 1 - 4 1. In words describe how you can calculate the number of pennies in exactly 10 lbs of pennies given the average mass of a penny is 2.509 g.
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This note was uploaded on 10/16/2009 for the course CHE 129/130 taught by Professor Hanson during the Fall '09 term at SUNY Stony Brook.

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04 Mole and Molar Mass - Question from Last Time A)$6.49...

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