A Mole of Photons with a Frequency of 7

Multiple Choice

A mole of photons with a frequency of 7.5 * 10¹⁶ Hz has what energy?

A) 3.0 * 10^-7J/mol
B) 4.2 * 10⁶J/mol
C) 3.3 * 10^-8J/mol
D) 3.0 * 10⁷J/mol
E) 3.3 * 10⁸J/mol