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Chemistry

how many atoms are present in a 1.48 micromol

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter3: Stoichiometry

Section: Chapter Questions

Problem 14ALQ: Is there a difference between a homogeneous mixture of hydrogen and oxygen in a 2:1 mole ratio and a...

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Question

how many atoms are present in a 1.48 micromol sample of pure helium?

Expert Solution

Step 1 mole

1 mole of any substance contains Avogadro number of entities

Avogadro's number = 6.022 x 10²³entities

Where

Entities means atoms/molecule/ ions /electrons etc

1 micro mol = 1 x 10^-6 mol

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