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1 g atom of nitrogen contains 6.023 xx 1...

1 g atom of nitrogen contains `6.023 xx 10^(23)` atoms of nitrogen.

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To solve the question, "1 g atom of nitrogen contains `6.023 x 10^(23)` atoms of nitrogen," we will follow these steps: ### Step 1: Understand the concept of a mole 1. A gram atom of an element is equivalent to one mole of that element. For nitrogen (N), this means that 1 gram atom of nitrogen corresponds to 1 mole of nitrogen. ### Step 2: Use Avogadro's number 2. Avogadro's number (Na) is `6.022 x 10^(23)`, which represents the number of particles (atoms, molecules, etc.) in one mole of a substance. ### Step 3: Determine the number of nitrogen molecules 3. Since nitrogen exists as a diatomic molecule (N2), when we refer to 1 mole of nitrogen gas (N2), we actually have 1 mole of nitrogen molecules. Therefore, the number of nitrogen molecules in 1 mole of N2 is: \[ \text{Number of molecules} = 1 \text{ mole} \times 6.022 \times 10^{23} \text{ molecules/mole} = 6.022 \times 10^{23} \text{ molecules of N2} \] ### Step 4: Calculate the total number of nitrogen atoms 4. Since each molecule of nitrogen gas (N2) contains 2 nitrogen atoms, we can find the total number of nitrogen atoms by multiplying the number of nitrogen molecules by 2: \[ \text{Total number of nitrogen atoms} = 2 \times (6.022 \times 10^{23}) = 1.2044 \times 10^{24} \text{ atoms of nitrogen} \] ### Conclusion 5. Therefore, the statement "1 g atom of nitrogen contains `6.023 x 10^(23)` atoms of nitrogen" is incorrect. The correct number of nitrogen atoms in 1 gram atom (or 1 mole) of nitrogen gas (N2) is `1.2044 x 10^(24)` atoms.
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1 g-atom of nitrogen represents

Assertion (A): Both 138 g of K_(2)CO_(3) and 12 g of carbon have some number of carbon atoms. Resaon (R ): Both contains 1 g atom of carbon which contains 6.022 xx 10^(23) carbon atoms.

Knowledge Check

  • 1 g atom of nitrogen represents

    A
    14 g nitrogen
    B
    11.2 litre of `N_(2)` at NTP
    C
    22.4 litre of `N_(2)` at NTP
    D
    `6.022xx10^(23)` molecules of `N_(2)`
  • 1 g atom of nitrogen represents:

    A
    14 g nitrogen
    B
    11.2 litre of `N_(2)` at NTP
    C
    22.4 litre of `N_(2)` at NTP
    D
    `6.023xx10^(23)` molecules of `N_(2)`
  • Assertion : Both 44 g CO_2 and 16 g CH_4 have same number of carbon atoms. Reason : Both contain 1 g atom of carbon which contains 6.023 xx 10^(23) carbon atoms.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.
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