Answered: Find the number of moles of the…

Find the number of moles of the indicated element a) 9.75 g of B2O3 b) 187.2 mg of Na2B4O7 . 10H2O c) 3.96 g of Mn3O4. d) 234 mg of CaC2O

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter4: Calculations Used In Analytical Chemistry

Section: Chapter Questions

Problem 4.7QAP

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Concept explainers

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

Find the number of moles of the indicated element a) 9.75 g of B2O3 b) 187.2 mg of Na2B4O7 . 10H2O c) 3.96 g of Mn3O4. d) 234 mg of CaC2O

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