Answer:
[tex]C_2=0.21M[/tex]
Explanation:
From the question we are told that:
Rate constant [tex]K=2.4 x*10^{-2} M-1 s-1[/tex]
Temperature [tex]T=35^o[/tex]
Initial concentration [tex]C_1=1.20M[/tex]
Time [tex]T=4min=>240sec[/tex]
Generally the equation for second order reacion is mathematically given by
[tex]\frac{1}{C_2} = \frac{1}{C_1} +Kt[/tex]
[tex]\frac{1}{C_2} = \frac{1}{1.2 } +2.4 * 10^{-2} *240[/tex]
[tex]\frac{1}{C_2} = 4.8[/tex]
[tex]C_2=0.21M[/tex]
