Determine the pH, pOH, [H+], [OH-], and if it is acidic basic or neutral and complete the following chart. Your answers should have 2 decimal places - DO NOT INCLUDE UNITS IN YOUR ANSWER

1. what is the OH- concentration for a solution with a pH of 12.50 *
2. What is the pH of a solution with an [OH-] = 1.5x10^-4 M *
3. What is the pH of a solution with an [H+] = 4.73x10-7 M *
4. What is the H+ concentration for a solution with a pH of 9.34 *

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?