D. Calculate the mass (g) of the following samples.25) 238 moles of lead238 male lead X (207.2g)I moi26) 1.54 x 10-⁹ moles of Zn1.54 x 10-a mol 2n x27) 7.70 x 109 moles of Mg(NO3)27.70 x 10-2 mol x28) 8.42 x 1027 atoms of tin29) 6.39 x 10¹8 atoms of sulfur= 4.93 x 10 4930) 5.99 x 1030 molecules of SiO₂(65.389)(148.30)1.01 x10-791.14 x 10-6 g

Since you have asked multipart type questions, we will solve only first three questions for you. If…

D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 238 male lead X (207.2g) I moi 26) 1.54 x 10 moles of Zn = 4.93 x1049 1.54 x 10-a mol 2n x (65.38g) 27) 7.70 x 10⁹ moles of Mg(NO3)2 7.70 x 10-2 mol x / 148.3g = 1.01 X10-7 14

D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 238 male lead X (207.2g) I moi 26) 1.54 x 10 moles of Zn = 4.93 x1049 1.54 x 10-a mol 2n x (65.38g) 27) 7.70 x 10⁹ moles of Mg(NO3)2 7.70 x 10-2 mol x / 148.3g = 1.01 X10-7 14

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

D. Calculate the mass (g) of the following samples.
25) 238 moles of lead
238 male lead X (207.2g)
I moi
26) 1.54 x 10-⁹ moles of Zn
1.54 x 10-a mol 2n x
27) 7.70 x 109 moles of Mg(NO3)2
7.70 x 10-2 mol x
28) 8.42 x 1027 atoms of tin
29) 6.39 x 10¹8 atoms of sulfur
= 4.93 x 10 49
30) 5.99 x 1030 molecules of SiO₂
(65.389)
(148.30)
1.01 x10-79
1.14 x 10-6 g

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