# Rachel Has A Sample Containing 2 Moles Of Carbon. How Many Atoms Of Carbon Are In This Sample?

Rachel has a sample containing 2 moles of carbon. Moles are a unit of measurement used in chemistry to represent the amount of a substance. One mole of any substance contains Avogadro’s number of particles, which is approximately 6.022 x 10^23. In the case of carbon, one mole of carbon contains 6.022 x 10^23 atoms. Therefore, to determine the number of atoms of carbon in Rachel’s sample, we need to multiply the number of moles by Avogadro’s number.

In this case, Rachel’s sample contains 2 moles of carbon. So, the number of atoms of carbon in her sample is calculated as follows:

Number of atoms = Number of moles x Avogadro’s number

Number of atoms = 2 moles x 6.022 x 10^23 atoms/mole

Number of atoms = 1.204 x 10^24 atoms

Therefore, Rachel’s sample contains approximately 1.204 x 10^24 atoms of carbon.

1. Carbon is the fourth most abundant element in the universe and the 15th most abundant element on Earth.
2. Carbon forms a wide variety of compounds due to its ability to bond with other elements, making it the basis of all known life on Earth.
3. Diamonds and graphite are two allotropes of carbon. Diamonds are formed under high pressure and temperature, while graphite is a soft, black, and slippery material.
4. Carbon is present in various forms, including as carbon dioxide (CO2) in the Earth’s atmosphere, as organic matter in living organisms, and as fossil fuels like coal, oil, and natural gas.
5. Carbon dating is a technique used by archaeologists and geologists to determine the age of organic materials by measuring the decay of carbon-14 isotopes.

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Common questions about moles and atoms of carbon:

1. What is a mole?
A mole is a unit of measurement used in chemistry to represent the amount of a substance. One mole of any substance contains Avogadro’s number of particles, which is approximately 6.022 x 10^23.

Avogadro’s number is the number of atoms, molecules, or particles in one mole of any substance. It is approximately 6.022 x 10^23.

3. How many atoms are in one mole of carbon?
One mole of carbon contains 6.022 x 10^23 atoms.

4. How do you calculate the number of atoms in a sample?
To calculate the number of atoms in a sample, multiply the number of moles of the substance by Avogadro’s number.

5. What is the formula for calculating the number of atoms?
Number of atoms = Number of moles x Avogadro’s number

6. Can you have a fraction of a mole?
Yes, it is possible to have a fraction of a mole. It typically represents a partial amount of a substance.

7. How is the number of moles determined in a sample?
The number of moles in a sample can be determined by dividing the mass of the sample by the molar mass of the substance.

8. Is one mole of carbon equal to one mole of any other element?
No, one mole of carbon is not equal to one mole of any other element. The molar mass of each element differs, so one mole of each element contains a different number of atoms.

9. How do moles and atoms relate to chemical reactions?
The concept of moles is used to balance chemical equations. The coefficients in a balanced equation represent the number of moles of each substance involved in the reaction.

10. What is the difference between a mole and a molecule?
A mole is a unit of measurement, while a molecule refers to a specific arrangement of atoms bonded together.

11. Can moles be used to measure gases?
Yes, moles are commonly used to measure gases since they can represent the quantity of particles present in a given volume.