How do I do questions 1-6?

1) Convert 3104nm to meter units. 3104nm10mm91m=3105m 2) Convert the wavelength from question 1 to frequency units. 3) Convert the wavelength from question 1 to wavenumber (iv) units. 4) When the IR is taken for the tape there is an absorbance peak at 1200cm1. What additive is this most likely to be? 5) Which chemical compound in a duct tape backing does not absorb at 1460cm1 ? 5) The strong absorption at 1730cm1 in polyacrylate is due to which type of vibration