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  • Which has more number of atoms 100g \: \: of \: \: N_2 \: \: or\: \: 100 g\: \: of \: \: NH_3

Which has more number of atoms?

100g \: \: of \: \: N_2 \: \: or\: \: 100 g\: \: of \: \: NH_3

Answers (1)

(i)100g\: \: of\: \: N_2 = \frac{100}{28}moles

Number \: of \: molecules = \frac{100}{28} \times 6.022 \times 10 ^{23}

Number \: of \: atoms = \frac{2 \times 100}{28} \times 6.022 \times 10 ^{23}

                                          =43.01 \times 10^{23}

(ii)100g\: \: of\: \: NH_3 = \frac{100}{17}moles

Number \: of \: molecules = \frac{100}{17} \times 6.022 \times 10 ^{23}

Number \: of \: atoms = \frac{4 \times100}{28} \times 6.022 \times 10 ^{23}

                                         =141.69 \times 10^{23}

NH_3 will have more atoms.

 

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infoexpert26

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