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x L of N2 at STP contains 3 xx 10^(22) ...

x L of `N_2` at STP contains `3 xx 10^(22)` molecules. The number of molecules in x/2 L of ozone at STP will be

A

`3 xx 10^(22)`

B

`1.5 xx 10^(22)`

C

`1.5 xx 10^(21)`

D

`1.5 xx 10^(11)`

Text Solution

Verified by Experts

The correct Answer is:
B
Equal volume of gases contain equal number of molecules at STP.
` therefore ` Half volume `x/2` will contain half number of molecules. i.e.
` 1/2 xx 3 xx 10^(22) = 1.5 xx 10^(22)`
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Knowledge Check

  • x L of N_(2) at STP contains 3xx10^(22) molecules. The number of molecules in x//2 L of ozone at STP will be

    A
    `3xx10^(22)`
    B
    `1*5xx10^(22)`
    C
    `1*5xx10^(21)`
    D
    `1*5xx10^(11)`

  • In chemistry, 'mole' is an essential tool for the chemical calculations. It is a basic SI unit adopted by the 14^(th) general conference on weights and measurements in 1971. A mole contains as many elementary particles as the number of atoms present in 12 g of ""^(12)C . 1 mole of a gas at STP occupies 22.4 litre volume. Molar volume of solids and liquids is not definite. Molar mass of a substance is also called gram-atomic mass or gram molecular mass. The virtual meaning of mole is plenty, heap or the collection of large numbers. 1 mole of a substance contains 6.022 xx 10^(23) elementary particles like atom or molecule. Atomic mass unit (amu) is the unit of atomic mass, e.g., atomic mass of single carbon is 12 amu. XL N_(2) , gas at STP contains 3xx10^(22) molecules. The number of molecules in x L ozone at STP will be

    A
    `3xx10^(22)`
    B
    `4xx10^(23)`
    C
    `6.02xx10^(23)`
    D
    `3xx10^(24)`

  • In chemistry, 'mole' is an essential tool for the chemical calculations. It is a basic SI unit adopted by the 14th general conference on weights and measurements in 1971. A mole contains as many elementary particles as the number of atoms present in 12g of .^(12)C . 1 mole of a gas at STP occupies 22.4 litre volume. molar volume of solids and liquids is not definite Molar mass of a substance is also called gram-atomic mass or gram molar mass. the virtual meaning of mole is plenty. heap of the collection of large numbers. 1 mole of a substance contains 6.023xx10^(23) elementary particles like atom or molecule. Atomic mass unit (amu) is the unit of atomic mass, e.g., atomic mass of single carbon is 12 amu. xL N_(2) gas at STP contains 3xx10^(22) molecules. the number of molecules. in x L ozone at STP will be:

    A
    `3xx10^(22)`
    B
    `6.02xx10^(23)`
    C
    `3xx10^(24)`
    D
    none of these.

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