You to partner mass cut 82.6 grams of potassium carbonate (K2CO3)on a balance. You pour this into your beaker Se mie water. What is the molarity of your solution?

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?