Question

9. Define isotopes and isobars with example, If one mole of carbon atom weights 12 grams, what is
the mass of one atom of carbon?​

Answer 1

Answer:

12.01g/mol

12 atoms x 1.66 x 10-24g x 6.022 x 1023 atoms/ mol= 12 g/mol. So a single carbon atom weighs 12 amu while a mole of carbon atoms weighs 12.01g/mol.

Answer 2

Answer:

1)Hence, we can say that isobars are the elements that have a different atomic number but with the same mass number. ... An example of two Isotopes and Isobars is nickel and iron. These both have the same mass number, which is 58, whereas the atomic number of nickel is 28, and the atomic number of iron is 26.

2)So, we know that a mole of carbon contains 6.022×1023 atoms. Therefore, we can write the mass of 6.022×1023 atoms = 12 g. Hence, the mass in grams of 1 atom of carbon is 1.993×10−23g .

Explanation:

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