20.00 mL of 0.200 M formic acid is titrated with 0.200 M NaOH what is the pH of the solution after 30.00 mL of NaOH titrant is added?

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

Tell me the iupac name of the following compounds:

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves