Answer:
The molar mass is "185.44 g/mol".
Explanation:
According to the question,
The moles of NaOH will be:
= [tex]\frac{0.315}{1000}\times 25.72[/tex]
= [tex]8.1018\times 10^{-3} \ moles[/tex]
Number of moles of an acid will be:
= [tex]\frac{8.1018\times 10^{-3}}{3}[/tex]
= [tex]2.7006\times 10^{-3} \ moles[/tex]
We know that,
⇒ [tex]Moles = \frac{Mass}{Molar \ mass}[/tex]
hence,
Molar mass of unknown acid will be:
= [tex]\frac{Mass \ in \ g}{Moles}[/tex]
= [tex]\frac{0.5008}{2.7006\times 10^{-3}}[/tex]
= [tex]185.44 \ g/mol[/tex]
