How does the spectrophotometer measure absorbance? Why does the dye absorb light (electron transitions)? What color light does Blue #1 dye absorb? What is the lambda max of the dye? What is Beer’s law and how can it be used to calculate the desired concentrations for your solutions? Considering Beer’s law, is it possible to look up the molar absorptivity coefficient of Blue #1 dye? How will you estimate what concentrations of dye will be required for an absorbance of 1.0 AU given a path length of 1.46cm? How would you dilute a 2.0 mM dye solution to make 100mL of this 1.0 AU solution? How can the 1.0 AU solution be diluted to form a point on the calibration curve at 0.25 AU?

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/4zZs6GM

1. they vary with a higher number because boiling is way hotter than melting

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.