I have ammonia (20 M) dissociating in water.  I add 2M ammonium Chloride to the ammonia.  Kb=1.8 x 10-5.  What is the pH?  (Assume x is too small and that don't need to worry about -x, +x. )

Q: What is the pH if the Kb for NH3 is 1.8x10-5?

A: pOH +pH = 14   So,  pH = 14 - pOH Initially we find the pOH with the help of Henderson-Hasselbalch…

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Q: 5.55 grams of solid calcium chloride, CaCl2, was dissolve in 250 mL of water to make a CaCl2…

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Q: What is the pH of 0.075 M methylammonium bromide, CH3NH3Br?  (Kb of CH3NH2 = 4.4 × 10−4.)

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Q: I have ammonia (20 M) dissociating in water. What is the pH? (4 sig figs). Kb= 1.8x 10-5

A: Ammonia disassociates in water to form Ammonium ion and Hydroxide ion NH3 + H2O <---> NH4+ +…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.