Complete the following table:
| $PCl_5$ | ![]() |
$PCl_3$ | + | $Cl_2$ | |
| nb. of moles initially | 0.83 | 0.19 | 0 | ||
| variation of mole nb. | ........(1) | ........(2) | ........(3) | ||
| nb. of moles finally | 0.71 | ........(4) | ........(5) |
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