How many atoms are present in 280 cm cubed of ammonia at s.t.p
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In terms of mole, 17 g of N 3 is equal to 1 mole. Now 1 mole of any substance contains 6.022 * 10^23 particles. Here we are talking about ammonia which is a molecule. Now 1 mole of ammonia also contains 6.022 * 10^23 molecules of ammonia.
In one molecule of ammonia,we have 1 nitrogen atom and 3 hydrogen atom. Hence a total of 4 atoms, so in 6.022 * 10^23 molecules of ammonia we will have 4 * 6.022 * 10^23 number of atoms. i.e. 24.088 * 10^ 23 atoms.
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