The density of mercury is 13.5 g/ml and the density of water is 1.00 g/ml. if a mercury barometer reads 677 mmhg, what is the barometric pressure in cmh2o?

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m