Very Common Mole Questions @tdewitt451

Tyler DeWitt | Very Common Mole Questions @tdewitt451 | Uploaded May 2014 | Updated October 2024, 7 hours ago.
Here are two very common questions about moles. First: we'll learn how to calculate the mass of a single atoms, answering the question "What is the mass in grams of a single atom of oxygen?" Then, we'll use moles to calculate a mass relationship between two elements, answering the question, "What mass of Mercury in grams has the same number of atoms at 64.2 grams of Calcium?" These two types of mole problems are very common on homework, in textbooks, on quizzes, and particularly on tests and exams.

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$Converting Between Grams and Moles Well learn how to convert back and forth between grams and moles. For each example, well do it two ways. First, a thinking through it approach, that shows how you multiply moles by the molar mass to convert from moles to grams, and how you divide grams by the molar mass to convert from grams to moles. Second, well use a conversion factor method where we write units based on molar mass information, and set up fractions to correctly cancel the units. For part two, check out the video http://youtu.be/0RXB8xNmJNM$

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