(01.07 LC) A metal rod with a length of 4.66 cm was measured using four different devices. Which of the following measurements is the most accurate? (5 points)

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Can someone me with 6 to 10 plz this is for masteries test.