AgNO 3 ionic radiusīeing an ionic molecule silver nitrate has ionic radius and the ionic radii for silver is 156 pm whereas for nitrate ion is 177 pm. Because silver posses positive charge where as nitrate ion contains negative charge and they are bind with ionic interaction and nitrate has extra electron which given to silver cation. The bond between silver(I) and nitrate radical is pure ionic in silver nitrate molecule. Silver nitrate exist as crystalline solid compound at room temperature, due to strong ionic interaction between constituent atoms. It has strong van der waal’s attraction as well as ionic force, so its boiling point so high. Silver nitrate has also high boiling point 440 0C or 713K because for inorganic salt like AgNO 3 needs more energy to get boiled off. Silver nitrate has higher melting point like 212 0C or 485K because it is ionic compound and the crystal of silver nitrate is very strong so required more energy to break the crystal and convert it into liquid state. The molar density of silver nitrate is high as it is solid molecule and the value is near about 4.35 cm 3/L because it has molar mass 169.87 g/mol and the volume of the molecule is 22.4L each for cation and anion as per Avagaord’s calculation. Solid silver nitrate does not have any viscosity because it is property of fluid, but molten silver nitrate has viscosity which is temperature dependent, Temperature Silver nitrate is colorless or white crystalline solid compound but when it reacted with organic molecule or explosure in light it changes its color to black for forming other molecule. The molar mass of silver nitrate is 169.87 g/mol which is coming from the atomic mass of silver which is 107.8682 and for nitrate radical it is one nitrogen and three oxygen atoms which has total molar mass 14.0067 + (15.999*3) = 62.0037, and total molar mass of silver nitrate is 107.8682 + 62.0037 = 169.87 g/mol.
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