Tính pH của các dung dịch sau: a. 11,2 g KOH trong 2 lit dung dịch
b. CH3COOH 0,001M biết Ka = 1,85.10-5
c. NH3 10-4 M biết pKb = 4,74
d. NH3 0,01M và NH4Cl 10-4 M, biết Ka = 1,8.10-5

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

After cloud droplets form, what must happen to them for precipitation to occur?

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?