$1 \mathrm{~A} / \mathrm{s}$

193000 coulombs

$$ \frac{96500}{\text { (Atomic weight of the substance) }} $$

Charge on 1 mole of electrons

102

53.5

$\infty$

141.5

$\mathrm{CaCO}_3$

NaCl

$\mathrm{FeCl}_3$

clay

$\mathrm{NO}_2^{-}(\mathrm{aq})+\mathrm{NH}_4^{+}(\mathrm{s}) \xrightarrow{\Delta}$

$\mathrm{CO}\left(\mathrm{NH}_2\right)_2(\mathrm{~s})+\mathrm{HNO}_2(l) \longrightarrow$

$\mathrm{NH}_3(\mathrm{~g})+\mathrm{NaOCl}(\mathrm{aq}) \xrightarrow{\text { Gelatine }}$

$\left(\mathrm{NH}_4\right)_2 \mathrm{Cr}_2 \mathrm{O}_7(\mathrm{~s}) \xrightarrow{\Delta}$