Answer
1. The molar mass for $S_2Cl_2$ is equal to 135.04 g/mole
2. The molar mass for $C_6H_6$ is equal to 78.11 g/mole
Work Step by Step
1. As we have determined in 7.71a, the molecular formula for the first compound is: $S_2Cl_2$
Molar Mass ($S_2Cl_2$):
$S: 32.07g * 2= 64.14g $
$Cl: 35.45g * 2= 70.90g $
64.14g + 70.90g = 135.04g
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2. As we have determined in 7.71a, the molecular formula for the second compound is: $C_6H_6$
Molar Mass ($C_6H_6$):
$C: 12.01g * 6= 72.06g $
$H: 1.008g * 6= 6.048g $
72.06g + 6.048g = 78.11g
