The basic organizational feature of the periodic table of elements

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

What can be found in the ionosphere

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