Mathematics · Dual Nature of Matter

The de Broglie wavelength of an oxygen molecule at 27°C is x × 10−12 m. Find the approximate value of x. (Take Planck's constant = 6.63 × 10−34 J·s, Boltzmann constant = 1.38 × 10−23 J/K, and the mass of an oxygen molecule = 5.31 × 10−26 kg).