Se tiene 300 ml de una solución a pH 3,6 constituido por 0,012 mol de acido debil (Ka= 4,5 x 10-4) y 0,023 mol de base o sal conjugada. Si se le agrega 0,12 mol de un ácido fuerte, su valor de pH es:

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

Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green

Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature