1. A compound of molar mass 270 contains 17.0% sodium, 47.4% sulfur and 35.6% oxygen. What is its molecular formula? 2. Nicotine, an alkaloid in the nightshade family of plants that is mainly responsible for the addictive nature of cigarettes, contains 74.02% C, 8.710% H, and 17.27% N. If 40.57 g of nicotine contains 0.2500 mol nicotine, what is the molecular formula?

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
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Task 1: Let's Practice!
Directions: Answer the following problems and show your complete solution in a
sheet of paper.(5 points each)
1. A compound of molar mass 270 contains 17.0% sodium, 47.4% sulfur and
35.6% oxygen. What is its molecular formula?
2. Nicotine, an alkaloid in the nightshade family of plants that is mainly responsible
for the addictive nature of cigarettes, contains 74.02% C, 8.710% H, and 17.27%
N. If 40.57 g of nicotine contains 0.2500 mol nicotine, what is the molecular
formula?
Transcribed Image Text:Task 1: Let's Practice! Directions: Answer the following problems and show your complete solution in a sheet of paper.(5 points each) 1. A compound of molar mass 270 contains 17.0% sodium, 47.4% sulfur and 35.6% oxygen. What is its molecular formula? 2. Nicotine, an alkaloid in the nightshade family of plants that is mainly responsible for the addictive nature of cigarettes, contains 74.02% C, 8.710% H, and 17.27% N. If 40.57 g of nicotine contains 0.2500 mol nicotine, what is the molecular formula?
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