atomic mass ( N =14 , H = 1×3 that means 14+3=17
340gram×17gram / mole
atomic mass ( H= 1×2 ,O= 16 =16+2 =18
I think 340g ammonia (NH3)
14 is this value for a molecule of .
Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.
In the Lewis-dot structure the valance electrons are shown by 'dot'.
Number of total outer valence electrons is carbon = 4
Number of total outer valence electrons is hydrogen = 1
Number of total outer valence electrons is chlorine = 7
For total number of outer electrons is
it luanches with air
ch4 + 2o2 gives co2+2h2o +891kj
becoz 891kj heat energy is given out
exothermic process means heat energy is given out/ released