2.3) The amide proton of N-methyl formamide (HCONHCH3) appears at 8.0 ppm in organic (nonexchanging) solvents. In water if this proton exchanges with the water protons at rates of 4x10-1/sec at pH 4 and 1x106 /sec at pH 10. Calculate the chemical shifts of the amide proton of 0.010 M N-methyl formamide in water at pH 4 and 10 for a proton NMR spectrometer operating at 600 MHz. Use 5.0 ppm for the chemical shift of the water protons.