12 amu and 1.9924 X 10^-23g express the mass of a atom of C?

  • Thread starter HCverma
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In summary, AMU stands for atomic mass unit and is a unit of measurement used for expressing the mass of atoms and molecules. It is related to the mass of an atom as one AMU is equal to 1/12th of the mass of a carbon-12 atom. The mass of an atom of carbon is often expressed in AMU because it is a more convenient unit for very small masses. AMU can be converted to grams using the conversion factor 1 amu = 1.6605 x 10^-24 grams. The mass of an atom of carbon is typically expressed in scientific notation, such as 1.9924 x 10^-23 grams, for easier representation and comparison of values.
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HCverma
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Homework Statement


12 amu and 1.9924 X 10^-23g express the mass of an atom of C?

Homework Equations

The Attempt at a Solution


Do 12 amu and 1.9924 X 10^-23g express the mass of an atom of C?
As I know,
6.023 X 10^23 atoms of C weighs 12 g,
1 atom of C weighs 1 X 12 / 6.023 X 10^23 = 12 amu -----------------------(1)
1 atom of C weighs.12 / 6.023 X 10^23 = 1.9924 X 10^-23 g ----------(2)
 
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HCverma said:
Do 12 amu and 1.9924 X 10^-23g express the mass of an atom of C?
Yes.
 

1. What does "amu" stand for?

AMU stands for atomic mass unit. It is a unit of measurement used to express the mass of atoms and molecules.

2. How is atomic mass unit (amu) related to the mass of an atom?

One atomic mass unit is defined as 1/12th of the mass of a carbon-12 atom. This means that the amu is a relative unit of measurement for the mass of an atom.

3. Why is the mass of an atom of carbon expressed in amu?

The mass of an atom of carbon is often expressed in amu because it is a more convenient unit of measurement for very small masses, such as those of atoms and molecules.

4. Can you convert amu to grams?

Yes, you can convert amu to grams by using the conversion factor 1 amu = 1.6605 x 10^-24 grams. This means that 12 amu is equivalent to approximately 1.9924 x 10^-23 grams.

5. How is the mass of an atom of carbon typically expressed?

The mass of an atom of carbon is typically expressed in scientific notation, as shown in the given example of 1.9924 x 10^-23 grams. This allows for easier representation and comparison of very small or large values.

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