How do you write the complete ionic equation and net ionic equation for ammonium chloride and copper (II) sulfate in water?

Answer 1

If your aspirin sample has an absorbance of 0.500 in a 1.00 cm cell, what will be its absorbance in a 1.50 cm cell. What would be the percent change in the absorbance if you used the larger cell and didn’t factor in the change in path length? The equation is y = 0.148X-0.058

I found the absorbance, which was about 0.3139. I just don’t understand the second part of the question.