(5) For a final exercise, using the absorbance spectrum of bromocresol green at various pH values pH -2.12
2
2.4
Amax = 620 nm
1.8
2.64
2.94
1.6 amax = 435 nm
3.2
1.4
-3.8
1.2
4.13
1 -
4.6
4.9
0.8
5.17
0.6
5.9
Absorbance
0.4
0.2
0
400
450
500
550
600
650
700
Wavelength / nm
shown below, describe to the reader what they are observing and how an absorbance titration would
allow for a more accurate calculation of the pk, of bromocresol green. Recall that molecules absorb
light, and instruments and humans see transmitted light (color opposites). The expectation is a
paragraph of at least 120 words in complete sentences with all references cited.

If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.