PLEASE HELP 6. What quantities are plotted on the x- and y-axes for (a) an absorption...

Question

Question

PLEASE HELP

6. What quantities are plotted on the x- and y-axes for (a) an absorption

spectrum and (b) a calibration curve?

7. Give a block diagram of a visible spectrophotometer (such as the

Spectronic 20), illustrating the major components of the instrument in the

correct sequence. (See Appendix II at the back of this booklet.)

8. What kind of light does the Spectronic 20 use? What is the function of a

monochromator?

9. Write the equilibrium constant expressions for the following chemical

reactions (using the net ionic reactions):

the formation of FeSCN2+

the reaction of KHP with NaOH (see Experiment 1)

the titration of Na2CO3 with HCl (see Experiment 1)

10. It is important that Kf for FeSCN2+ has a large value in order for this

experiment to work well. Can you explain why this is necessary?

science chemistry

Answer 1

Answer #1

Answer 2

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