Calculate number of atoms in each of the following" i. 0.5 mol atom of nitorgen ii. 0.2 mol molecules of hydrogen iii. 3.2 g of sulphur Calculate number of molecules in each of the following: i. 14 g of nitrogen ii. 3.4 g of `H_(2) S`

Calculate number of atoms in each of the following" i. 0.5 mol atom of

1.	Calculate number of atoms in each of the following" i. 0.5 mol atom of nitorgen ii. 0.2 mol molecules of hydrogen iii. 3.2 g of sulphur Calculate number of molecules in each of the following: i. 14 g of nitrogen ii. 3.4 g of `H_(2) S`
Answer» 1 mol of `N_(2) = 6.023 xx 10^(23)` molecules or mole atom `0.5 " mol atom of" N_(2) = 6.023 xx 10^(23) xx 0.5` `3.10 xx 10^(23)` atoms ii. 1 mol of `H_(2) = 6.023 xx 10^(23)` molecules `= 2 xx 6.023 xx 10^(23)` atoms `0.2 mol of H_(2) = 2 xx 6.023 xx 10^(23)` atoms iii. `32 g of S = 6.023 xx 10^(23)` atoms `3.2 g of S = 6.023 xx 10^(22)` atoms b. `1 mol of N_(2) = 28 g` i. `28 g of N_(2) = 6.023 xx 10^(23)` molecules `14 g of N_(2) = (6.023 xx 10^(23))/(28) xx 14` `= 3.01 xx 10^(23)` molecules ltbRgt ii. `34 g of H_(2) S implies 6.023 xx 10^(23)` molecules `3.4 g of H_(2) Simplies 6.023 xx 10^(22)` molecules

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Calculate number of atoms in each of the following" i. 0.5 mol atom of nitorgen ii. 0.2 mol molecules of hydrogen iii. 3.2 g of sulphur Calculate number of molecules in each of the following: i. 14 g of nitrogen ii. 3.4 g of `H_(2) S`

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