Answer
The molar mass of dipyrithione ($C_{10}H_8N_2O_2S_2$) is equal to 252.3 g/mole.
Work Step by Step
Molar Mass ($C_{10}H_8N_2O_2S_2$):
$C: 12.01g * 10= 120.1g $
$H: 1.008g * 8= 8.064g $
$N: 14.01g * 2= 28.02g $
$O: 16.00g * 2= 32.00g $
$S: 32.07g * 2= 64.14g $
120.1g + 8.064g + 28.02g + 32.00g + 64.14g = 252.3g
