Answered: C. Calculate the number of atoms or…

C. Calculate the number of atoms or molecules in each of the following samples. 19) 0.357 moles of potassium 20) 2.93 moles of Ca 21) 473 moles of CuSO4

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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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.

Question

C. Calculate the number of atoms or molecules in each of the following samples.
19) 0.357 moles of potassium
20) 2.93 moles of Ca
21) 473 moles of CuSO4
22) An 85.5-g sample of Hg in a barometer
23) A 0.251-g Ti metal heart valve
24) A 10.0-g sample of N₂0 gas

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