. A particular 100-octane aviation gasoline used
1.00 cm3 of tetraethyl lead (C2H5)4Pb of density 1.66g/cc, per litre of product. This compound is made as follows.
How many gram of ethyl chloride is needed to make enough tetraethyl lead for 1 L of gasoline
B. 2.66 g
Sol: The mass of 1 cc of (C2H5)4Pb is = 1 ´ 1.66 = 1.66g and this is the amount needed per litre.
No. of moles of (C2H5)4Pb needed = 1.66/323= 0.00514 ml
1 mole of (C2H5)4Pb requires 4 x (0.00514) = 0.0206 ml of C2H5Cl
Mass of C2H5 Cl = 0.0206 ´ 64.5 = 1.33 g