What does pressure measure

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Stage in which a typical star has completely stopped fusion

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