I have 4.0 L of a 3.0 M NaCl solution and I want to dilute it to 2.0 M. How much water do I need to add?

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Connect the whole numbers on the periodic table to indicate what they represent?