The K, for pyridine C,H,N is 1.7 x 10°. а) Calculate K, for its conjugate acid C,H,NH". b) Complete this equilibrium equation C,H,NH + H,O (1) Is hydrazine (K, = 1.3 x 10°) a stronger or weaker base c) than pyridine?

The Ksp of magnesium hydroxide is 1.7x10-11. If 5.0 grams of the solid are placed into a flask containing 1.0 L of water, what will be the result? Group of answer choices None of it will dissolve. Much less than 1 g will dissolve and the pH of the solution will be below 4. All of it will dissolve. Approximately 1 g will dissolve and the pH of the solution will be below 2. Much less than 1 g will dissolve and the pH of the solution will be above 10. Approximately 1 g will dissolve and the pH of the solution will be above 12.

3SnCl4 + 4Al(C2H5)3 ----> 3Sn(C2H5)4 + 4AlCl3 1) In one experiment, 0.300 L of SnCl4 (d = 2.226 g/mL) was treated with 0.579 L of triethylaluminum (Al(C2H5)3); d = 0.835 g/mL).What is the theoretical yield in this experiment (mass of tetraethylstannane, Sn(C2H5)4)? 2) If 0.352 L of tetraethylstannane (d = 1.187 g/mL) were actually isolated in this experiment, what was the percent yield?

How long (in seconds) does it take for the concentration of A to decrease to 0.00800 M? Enter your answer with one decimal place and no units. 1/[A] 120 100 80 60 40 20 0 0 10 20 y = 0.7957x + 61.714 R² = 0.9998 30 Time (sec) 40 50 60