A chicken taco salad without dressing at one Mexican restaurant chain contains a whopping 1,180 calories. In addition, it provides 75 grams of fat, 79 grams of carbohydrate, 52 grams of protein, 13 grams of fiber, and 2,160 mg of sodium.
Infrared Light. Infrared (IR) light is light with lower frequency (higher wavelength) than visible light. IR light has frequencies ranging from 3*1011 to 4*1014 Hz (300 GHz to 400 THz) and wavelengths from 7.5*10-7 m to 10-3 m (750 nm to 1 mm).
Important IR Absorbance Frequencies. Vibration Wavenumber, cm-1. Major Peaks â very important. sp3 C-H stretch 2960-2850 (<3000) sp2 C-H stretch 3100-3020 (>3000) C=O frequency depends on type of carbonyl and. whether or not it is conjugated- strong, sharp.