Answer:
I don't know what the hell is going on with the this.
Hey there!
RbOH
Rb: 1 x 85.468 = 85.468
O: 1 x 16 = 16
H: 1 x 1.008 = 1.008
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102.476
The molar mass of RbOH is 102.476 g/mol.
Hope this helps!
Option B is the correct answer
