[BreakingBad20]

I'm currently doing an experiment on the variation of conversion and throughput with residence time in an ideal plug flow reactor. The initial concentrations were thought to be 0.05M of both ethyl acetate and sodium hydroxide as described in the lab manual however we recieved an email stating: "For those of you doing calculations with lab flow reactors, remember when calculating your concentrations, that if you have two reactant streams mixing on entering the reactor, then they dilute each other when they mix."
Does anyone know how this would affect the initial concentration or have a link to explain this further?

[curiouscat]

Dissolve 1 gmol A in 1 L water in a flask. What's conc. of A?

Dissolve 1 gmol B in 1 L water in another flask. What's conc. of B?

Now pour both into a 2 L flask. What are the conc. of A and B  now?

[BreakingBad20]

(1) A = 1 gmol/L
(2) B = 1 gmol/L
(3) A = .5 gmol/L B = .5 gmol/L

[curiouscat]

So you see now what the email is implying? 

[BreakingBad20]

Yes ! 

[curiouscat]

Glad!