Force necessary to change an object's motion

What are the concentrations of hydroxide and hydronium ions in a solution with a ph of 10.2?

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

If i had 2 m naoh solution, what does the 2 m stand for? 2 molar, but 2 of a solute in 1