Answer : The number of moles of [tex]O_2[/tex] needed are 5.88 moles.
Solution : Given,
Moles of [tex]C_2H_2[/tex] = 2.35 mole
The balanced chemical reaction will be,
[tex]2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O[/tex]
From the balanced reaction we conclude that
As, 2 moles of [tex]C_2H_2[/tex] react with 5 moles of [tex]O_2[/tex]
So, 2.35 moles of [tex]C_2H_2[/tex] react with [tex]\frac{2.35}{2}\times 5=5.88[/tex] moles of [tex]O_2[/tex]
Therefore, the number of moles of [tex]O_2[/tex] needed are 5.88 moles.
