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The number of particles present in one m...

The number of particles present in one mole of any substance is equal to:

A

`6.022 xx 10^(23)`

B

`60.22 xx 10^(23)`

C

`6.022 xx 10^(27)`

D

`60.22 xx 10^(27)`

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To solve the question, "The number of particles present in one mole of any substance is equal to:", we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Concept of a Mole**: - A mole is a unit in chemistry that is used to express amounts of a chemical substance. It is one of the seven base units in the International System of Units (SI). 2. **Avogadro's Number**: - The number of particles (atoms, molecules, ions, etc.) in one mole of any substance is defined by Avogadro's number. This number is a constant that is approximately equal to \(6.022 \times 10^{23}\). 3. **Application of Avogadro's Number**: - For example, if we have one mole of carbon, it contains \(6.022 \times 10^{23}\) atoms of carbon. - Similarly, if we have one mole of carbon dioxide (CO₂), it contains \(6.022 \times 10^{23}\) molecules of CO₂. 4. **Generalization**: - Regardless of the substance, whether it is an element like carbon or a compound like CO₂, one mole of that substance will always contain \(6.022 \times 10^{23}\) particles. 5. **Conclusion**: - Therefore, the number of particles present in one mole of any substance is equal to \(6.022 \times 10^{23}\). ### Final Answer: The number of particles present in one mole of any substance is equal to \(6.022 \times 10^{23}\). ---

To solve the question, "The number of particles present in one mole of any substance is equal to:", we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Concept of a Mole**: - A mole is a unit in chemistry that is used to express amounts of a chemical substance. It is one of the seven base units in the International System of Units (SI). 2. **Avogadro's Number**: ...
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The number of atoms present in one molecule of a substance is called its…………… .

Avogadro's law states that under similar condition of T and P, equal number of particles. Experiments show that at one atmosphere pressure and at a temperature 273 K (i.e. at STP) one mole of any gas occupies a volume approximately 22.4 litre. Therefore number of moles of any sample of gas can be found by comparing its volume at STP with 22.4. 1 mole of any species contains 6.023xx10^(23) particles which is denoted by symbol N_(A) . Number of atoms present in 1 gm-atom of an element or number of molecules present in 1 gm-molecule of any substance is equal to N_(A) . Hence it is number of particles present in one mole of the substance. At STP 11.2 L of CO_(2) contains.

Knowledge Check

  • What is the number of particles present in 1 mole of any substance.

    A
    `6.022 times 10^23`
    B
    `6.023 times 10^-22`
    C
    `6.022 times 10^-23`
    D
    `6.023 times 10^22`
  • Avogadro's law states that under similar condition of T and P, equal number of particles. Experiments show that at one atmosphere pressure and at a temperature 273 K (i.e. at STP) one mole of any gas occupies a volume approximately 22.4 litre. Therefore number of moles of any sample of gas can be found by comparing its volume at STP with 22.4. 1 mole of any species contains 6.023xx10^(23) particles which is denoted by symbol N_(A) . Number of atoms present in 1 gm-atom of an element or number of molecules present in 1 gm-molecule of any substance is equal to N_(A) . Hence it is number of particles present in one mole of the substance. The number of gm atoms of oxygen present in 0.2 mole of H_(2)S_(2)O_(8) is.

    A
    `0.2`
    B
    8
    C
    `1.6`
    D
    `0.8`
  • Avogadro's law states that under similar condition of T and P, equal number of particles. Experiments show that at one atmosphere pressure and at a temperature 273 K (i.e. at STP) one mole of any gas occupy a volume approximately 22.4 litre. Therefore number of moles of any sample of gas can be found by comparing its volume at STP with 22.4. 1 mole of any species contains 6.023xx10^(23) particles which is denoted by symbol N_(A) . Number of atoms present in 1 gm-atom of an element or number of molecules present in 1 gm-molecule of any substance is equal to N_(A) . Hence it is number of particles present in one mole of the substance. If N_(AV) is Avogardo's number, then 10 amu will be equal to _________ gram.

    A
    `10 N_(AV)`
    B
    `(N_(AV))/(10)`
    C
    `(10)/(N_(AV))`
    D
    `N_(AV)`
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