Calculate how many milliliters of 0.100 M HCl should be added to how many grams of sodium acetate dihydrate (NaOAc 2H2O, FM 118.06) to prepare 250.0 mL of 0.100 M buffer, pH 5.00

Displacement is the slope of a velocity vs. time graph a. true b. false

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

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.