8. A substance has the following composition by mass: 35.51 percent C, 4.77 percent H, 37.85 percent O, 8.29 percent N, and 13.60 percent Na. What is its molecular formula if its molar mass is about 169 g? / RSK. C2H8O2N2NA KRS. C5H8O4N2NA RKS. C2H8O2NNA SKR. CSH8O4NNA sel

8. A substance has the following composition by mass: 35.51 percent C, 4.77 percent H, 37.85 percent O, 8.29 percent N, and 13.60 percent Na. What is its molecular formula if its molar mass is about 169 g? / RSK. C2H8O2N2NA KRS. C5H8O4N2NA RKS. C2H8O2NNA SKR. CSH8O4NNA sel

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter5: Stoichiometry

Section: Chapter Questions

Problem 151AE: A substance X2Z has the composition (by mass) of 40.0% X and 60.0% Z. What is the composition (by...

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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

8. A substance has the following composition by mass: 35.51 percent C, 4.77 percent
H, 37.85 percent O, 8.29 percent N, and 13.60 percent Na. What is its molecular
formula if its molar mass is about 169 g? !
RSK. C2H8O2N2NA
KRS. C5H8O4N2NA
RKS. C2H8O2NNA
SKR. C5H8O4NNA

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