Question

Calculate no. of molecules in 34 gm NH3?
​

Answer 1

$Mass \: of \: 1 mol \: or \: \\ (6.022 \: × \: 10 </p><p>23 \: molecules) \: of \: NH3 \: \\ =14+3×1=17 g \\ </p><p></p><p>Number \: of \: molecules \: \\ in 34 \: g NH \: =</p><p>(34/17) ×6.022×10 {}^{23} \\ </p><p> =12.044×10 {}^{23} </p><p> </p><p> \\ Number \: of \: atoms \: present \: in \: \\ 1 \: molecule \: of \: NNH \: =4</p><p></p><p>Number \: of \: atoms \: in \\ 34 g \: NH3 \: = \: 4×12.044×10 {}^{23} </p><p> </p><p> ≈48×10 {}^{23}$

scroll for best view➡️➡️➡️