Answer:- 0.00724 moles.
Solution:- Grams of salicylic acid are given and it asks to calculate the moles.
For the moles, we divide the grams by the molar mass.
Formula of salicylic acid is [tex]C_7H_6O_3[/tex]
Molar mass = 7(12.01)+6(1.01)+3(16.00)
= 84.07+6.06+48.00
= 138.13 gram per mol
We could make the dimensional analysis set up for showing unit cancellation and have the moles.
[tex]1.00g(\frac{1mol}{138.13g})[/tex]
= 0.00724 moles
So, there will be 0.00724 moles of salicylic acid in it's 1.00 gram.
