D. Calculate the mass (g) of the following samples.25) 238 moles of lead26) 1.54 x 10⁹ moles of Zn27) 7.70 x 10-⁹ moles of Mg(NO3)228) 8.42 x 1027 atoms of tin29) 6.39 x 10¹8 atoms of sulfur30) 5.99 x 1030 molecules of SiO₂

D) Calculating the mass (in grams) of the following sample: 25) 238 moles of lead 26) 1.54 × 10-9…

Answered: D. Calculate the mass (g) of the…

D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 109⁹ moles of Zn 27) 7.70 x 10-⁹ moles of Mg(NO3)2

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter4: Stoichiometry

Section: Chapter Questions

Problem 4.106PAE: 4.106 An ore sample with a mass of 670 kg contains 27.7% magnesium carbonate, MgCO3. If all of 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.

Question

D. Calculate the mass (g) of the following samples.
25) 238 moles of lead
26) 1.54 x 10⁹ moles of Zn
27) 7.70 x 10-⁹ moles of Mg(NO3)2
28) 8.42 x 1027 atoms of tin
29) 6.39 x 10¹8 atoms of sulfur
30) 5.99 x 1030 molecules of SiO₂

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