Answer to Question #18112 in Chemistry for idk

Question

what is the mass of one atom in a sample of 0.543 of oxygen (gas)

Answer 1

Number of protons in oxygen atom: 8
Mass of one proton = 1.67262158 x 10^-27 kg
Mass of protons in one oxygen atom = 1.338097264 x 10^-26 kg
Mass of one neutron: 1.674927293 x 10^-27 kg
Mass of neutrons in one oxygen atom: 1.33994183 x 10^-26 (for 8 neutrons)
Mass of one oxygen atom: 2.67803909 x 10^-26 (protons + neutrons).