Chemistry I17) An atom of lead has a mass 17.16 times greater than the mass of an atom of carbon-12. What is the molar mass of this isotope of lead? 200 g 216 g 196 g 206 gPrevious Question Next QuestionDo not use the 'Forward' or 'Back' button on your browser.
Question
Chemistry I17) An atom of lead has a mass 17.16 times greater than the mass of an atom of carbon-12. What is the molar mass of this isotope of lead? 200 g 216 g 196 g 206 gPrevious Question Next QuestionDo not use the 'Forward' or 'Back' button on your browser.
Solution
The molar mass of an atom is usually close to its atomic number. The atomic number of lead is 82.
Given that the mass of the lead atom is 17.16 times greater than that of a carbon-12 atom, we can calculate the molar mass of the lead atom as follows:
- The molar mass of carbon-12 is defined as 12 g/mol.
- Therefore, the molar mass of the lead atom would be 17.16 times that of carbon-12, which is 17.16 * 12 g/mol = 205.92 g/mol.
So, the molar mass of this isotope of lead is closest to 206 g.
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