13) Water is 88.8% oxygen by mass. What mass of water contains 32.0 g of oxygen? A) 36.036 g B) 36.04 g C) 36.0 g D) 28.4 g E) 2
8.42 g F) 28.416 g
1 answer:
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Answer:
2.21 x 10⁻⁷m⁻¹
Explanation:
Given parameters:
Energy of the photon = 9.02 x 10⁻¹⁹J
Unknown:
Wavelength of the photon = ?
Solution;
The wavelength and energy of a photon are related using the expression below;
E =
h is the Planck's constant = 6.63 x 10⁻⁴m²kg/s²
c is the speed of light
E is the energy
h c = E x wavelength
Wavelength = =
Wavelength = 2.21 x 10⁻⁷m⁻¹