Calculate the no. of atoms of potassium present in 117 g. of K. [K = 39]

Gram atomic mass of K = 39 At s.t.p., 39 g of K = 6.023 x 10 23 atoms of K [Avogadro's law] Therefore, 117 g of K Hence, number of atoms in 117 g of K = 3 x 6.023 x 10 23

Calculate the number of :
(i) molecules [S = 32]
(ii) atoms in 192 g. of sulphur. [S₈]

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Calculate the mass of Na which will contain 6.023 × 10²³ atoms. [Na = 23]

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Calculate the number of moles and molecules in 19.86 g. of Pb(NO₃)₂. [Pb = 207, N = 14, O = 16]

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Calculate the mass of an atom of lead [Pb = 202].

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Chemistry

Calculate the no. of atoms of potassium present in 117 g. of K. [K = 39]

Mole Concept

Related Questions

Calculate the number of :
(i) molecules [S = 32]
(ii) atoms in 192 g. of sulphur. [S₈]

Calculate the mass of Na which will contain 6.023 × 10²³ atoms. [Na = 23]

Calculate the number of moles and molecules in 19.86 g. of Pb(NO₃)₂. [Pb = 207, N = 14, O = 16]

Calculate the mass of an atom of lead [Pb = 202].

Chemistry

Calculate the no. of atoms of potassium present in 117 g. of K. [K = 39]

Mole Concept

Related Questions

Calculate the number of :(i) molecules [S = 32](ii) atoms in 192 g. of sulphur. [S8]

Calculate the mass of Na which will contain 6.023 × 1023 atoms. [Na = 23]

Calculate the number of moles and molecules in 19.86 g. of Pb(NO3)2. [Pb = 207, N = 14, O = 16]

Calculate the mass of an atom of lead [Pb = 202].

Calculate the number of :
(i) molecules [S = 32]
(ii) atoms in 192 g. of sulphur. [S₈]

Calculate the mass of Na which will contain 6.023 × 10²³ atoms. [Na = 23]

Calculate the number of moles and molecules in 19.86 g. of Pb(NO₃)₂. [Pb = 207, N = 14, O = 16]