C. Calculate the number of atoms or molecules in each of the following samples.19) 0.357 moles of potassium2PTRIA 101 X00JO1XSJOOM DIT20) 2.93 moles of Ca21) 473 moles of CuSO422) An 85.5-g sample of Hg in a barometer23) A 0.251-g Ti metal heart valve24) A 10.0-g sample of N₂O gas

Answered: Image /qna-images/answer/dff8226c-cd40-4dca-bd7f-fad8da205635.jpg

C. Calculate the number of atoms or molecules in each of the following samples. 19) 0.357 moles of potassium 2rms Of X-90| JONI DIT= 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 N₂O gas

C. Calculate the number of atoms or molecules in each of the following samples. 19) 0.357 moles of potassium 2rms Of X-90| JONI DIT= 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 N₂O gas

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 3.79PAE: 3.79 Consider two samples. Sample A contains 2 moles of N2 and 1 mole of O2, and Sample B contains 1...

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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
2PTRIA 101 X00
JO1XSJO
OM DIT
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 N₂O gas

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