Answer
a) $C_5H_5N$
b) $C_4H_9N$
c) $C_4H_4O$
d) $C_4H_9NO_2$
e) $C_{11}H_{19}NO$
f) $C_6H_{12}O$
g) $C_7H_8O_3S$
h) $C_7H_8O_3$
Work Step by Step
Count the number of atoms of the element in the structure and write that number as a subscript to write the molecular formula.
a) $C_5H_5N$
b) $C_4H_9N$
c) $C_4H_4O$
d) $C_4H_9NO_2$
e) $C_{11}H_{19}NO$
f) $C_6H_{12}O$
g) $C_7H_8SO_3$
h) $C_7H_8O_3$