Question

The empirical formula of acetic acid is the same as that of
a Sucrose
b)Glucose
c)Oxalic acid
d)Formic acid

key answer oxalic acid
please explain why oxalic acid​

Answer 1

Explanation:

Is the empirical formula of acetic acid the same as that of sucrose glucose, oxalic acid, and formic acid?

1 vote

Not quite. Acetic acid is CH3CO2H, giving a molecular formula of C2H4O2 and an empirical formula

Answer 2

$\sf \bold{ANSWER\: : }$ option b) Glucose

$\sf \bold{Solution\: : }$

$\implies$ molecular formula of acetic acid = $\sf CH_{3}COOH$

$\implies$ we can write molecular formula of acetic acid as , $\sf C_{2}H_{4}O_{2}$

$\implies$  $\sf C_{2}H_{4}O_{2}$ , can be written as { 2× (  $\sf CH_{2}O$ ) }

$\implies$ therefore empirical formula of acetic acid =  $\sf CH_{2}O$

1) $\sf \bold{Sucrose\: : }$  molecular formula =  $\sf C_{12}H_{22}O_{11}$

$\implies$ empirical formula of Sucrose = $\sf C_{12}H_{22}O_{11}$

2)  $\sf \bold{Glucose\: : }$ molecular formula = $\sf C_{6}H_{12}O_{6}$

$\implies$ therefore empirical formula of glucose =  $\sf CH_{2}O$

3) $\sf \bold{Oxalic\:acid\: : }$ molecular formula = HOOCCOOH

$\implies$ we can write molecular formula of oxalic acid as , $\sf C_{2}H_{2}O_{4}$

$\implies$ therefore empirical formula of oxalic acid=  $\sf CHO_{2}$

4) $\sf \bold{Formic\:acid\: : }$ molecular formula = HCOOH

$\implies$ we can write molecular formula of formic acid as , $\sf CH_{2}O_{2}$

$\implies$ therefore empirical formula of formic acid =  $\sf CH_{2}O_{2}$

$\implies$ as we can see above, emperical formula of acetic acid is same as that of glucose , that is , $\sf CH_{2}O$