You are not certain whether these two peaks are singlets arising from uncoupled protons at different chemical shifts or are two peaks of a doublet that arises from protons coupling with a single adjacent proton. What simple experiment would you perform to distinguish between these two possibilities

Find the mass, in grams, of 5.00*10^23 molecules of f2

Is it safe to take 450mg of diphenhydramine hydrochloride?

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity