Molar mass- please help

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.

The most common form of matter in the universe