Determine whether aqueous solutions of the following salts have a pH equal to, greater than, or less than 7; if pH > 7 or pH< 7, write a chemical equation to justify your answer. (a) NH4Br. (b) Na2CO3, (c) KF, (d) KBr, (e) AICI3, (f) Co(NO3)2.
Added by Nicole M.
Step 1
When dissolved in water, it will undergo hydrolysis, and the NH4+ ion will react with water to form NH3 and H3O+ ions. Since the NH4+ ion comes from a weak base and the Br- ion comes from a strong acid, the solution will be acidic (pH < 7). The chemical equation Show more…
Show all steps
Your feedback will help us improve your experience
Isaac Huidobro and 72 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
For each salt, predict whether an aqueous solution will have a pH less than, equal to, or greater than $7 .$ Explain your answer. (a) $\mathrm{AlCl}_{3}$ (b) $\mathrm{Na}_{2} \mathrm{~S}$ (c) $\mathrm{NaNO}_{3}$
Predict the $\mathrm{pH}(>7,<7, \text { or } \approx 7)$ of aqueous solutions containing the following salts: (a) $\mathrm{KBr},$ (b) $\mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3},$ (c) $\mathrm{BaCl}_{2},$ (d) $\mathrm{Bi}\left(\mathrm{NO}_{3}\right)_{3}$.
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD