The molar mass of (NH4)2PO4

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

What forms when chemical reactions combine pollution with sunlight?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?