Question

0.145 gm of k2Cr207 [K-39 Cr-52, 0-16] was dissolved in water and diluted in 500 mi flask. A 25ml sample of this soln was transferred to another 500ml flask and diluted to the mark. The final soln had an absorbance 0.297 at 520 nm in b-1 cm.​

Answer 1

Answer:

what's the question man???