Answer
$GeCl_4$
Work Step by Step
Atomic weight $Ge: 72.630 g/mol$
Molar mass: $Cl_2: 70.91\ g/mol$
Mass of Ge: 1.25 g
Mass of the product: 3.69 g
Mass of $Cl_2$: 3.69- 1.25= 2.44 g
Number of mols:
Ge: $1.25/72.630=0.0172\ mol$
$Cl_2$: $2.44/70.91=0.0344\ mol\ Cl_2 = 0.0688\ mol\ Cl$
Ratio of the number of moles of Cl by Ge: $0.0688/0.0172=4.00 = y/x$
From the data given, only the ratio y/x can be determined. Assuming x=1:
Product's molecular formula: $GeCl_4$
