Answered: For the element aluminum, Al: (a)…

For the element aluminum, Al: (a) Calculate the number of moles in 7.54 g. (b) Calculate the number of grams in 0.154 mol. (c) How many moles are there in 5.22 x 1022 atoms of the element?

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter3: Molecules, Moles, And Chemical Equations

Section: Chapter Questions

Problem 3.123PAE: 3.123 Most periodic tables provide molar masses with four or five significant figures for the...

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

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5.
For the element aluminum, Al:
(a) Calculate the number of moles in 7.54 g.
(b) Calculate the number of grams in 0.154 mol.
(c) How many moles are there in 5.22 x 1022 atoms of the element?

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