Question

In a reaction, 5g of ethyl acetate is hydrolysed per litre in presence of dil . HCl in 300 minutes. If the reactant to be reduced to 2.5g?

Answer 1

According to available data:
a=`22g L^(-1), (a-x)=(22-5)=17 gL^(-1), t=300 min`.
For the first order reaction,
`k=(2.303)/t log a/(a-x) = 2.303/(300 "min") log (22g L^(-1))/(17 gL^(-1))`
`=2.303/(300 "min") log 1.2941 = 2.303/(300 "min") xx 0.1120 = 8.6 xx 10^(-4) min^(-1)`