Calculate the volume of 0.25 mol of hydrogen gas at room temperature and pressure

Noble gases are the most reactive elements on the periodic table. a. true b. false

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

The excretory system, need answers for all: )