Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. 1) calculate ph of saturated solution of silver ni

1) Calculate pH of saturated solution of silver nitrite (AgNO2) in water if its solubility product is...

Free

60.1K

Verified Solution

Question

Chemistry

1) Calculate pH of saturated solution of silver nitrite (AgNO2)in water if its solubility

product is Ksp= 6.1*10^-4 and the pKa of nitrous acid is3.4.

2) Dibasic calcium phosphate (CaHPO4) has limited solubility inwater with solubility product of Ksp= 7.23*10^-7. Taking intoaccount ionic interactions, what will be the concentration of Ca2+ions in the solution saturated with CaHPO4 after 2.5*10^-3 mmagnesium chloride (MgCl2) is dissolved in the same solution.

Answer & Explanation Solved by verified expert
4.3 Ratings (935 Votes)

1.

AgNO2 (s)      =   Ag+    +       NO2-             K = Ksp = [Ag+][NO2-]

NO2-   + H2O = HNO2 +   HO-                 K = Kb = [HNO2][HO- ]/[ NO2-]

…………………………………………………………………………..       

AgNO2 (s) + H2O =   Ag+    +   HNO2 +   HO-       K = Ksp.Kb

Observe that:

[HNO2] = [HO-]

And [Ag+] = [NO2-] = (Ksp)1/2

Ksp.Kb = [Ag+][HNO2][HO-]

1x10-14Ksp/Ka = (Ksp)1/2 x [HO-]2

1x10-14Ksp1/2/Ka = [HO-]2

[HO-]2 = 1x10-14x(6.1x10-4)1/2/10-3.4

            = 2.45x10-16 / 4.0x10-4

            = 61.25x10-14

[HO-] = 7.8x10-7 M

[H+] = 1x10-14/7.8x10-7 = 1.3x10-8 M

pH = -log[H+] = 7.9

Reload q2 as separate post.
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Chemistry
1.2K views

What is the minimum mass of ice at 0.0 C that must be added to...

Psychology
1.2K views

Name and explain two sleep disorders. List the five major categories of psychoactive drugs and give...

Biology
1.2K views

The problem here is that your topic is exactly the same as a paper that...

Physics
1.2K views

57 In a network as shown in the figure the potential difference across the resistance...

Physics
1.2K views

The maximum energy stored in the inductors is x J The value of x is...

Geometry
1.2K views

Figure EFGH maps to Figure order to receive full credit D B A E H...

Geometry
1.2K views

3 A hiker whose eye is 1 6 metres above ground stands 50 metres from...

Algebra
1.2K views

Perform the indicated operation.(4 + 2i)(4-2i)

Accounting
1.2K views

Concord Company sells two types of pumps. One is large and is for commercial use....

Accounting
1.2K views

Stylish Sitting is a retailer of office chairs located in San Francisco, California. Due to...

Accounting
1.2K views

On September 7, the billing date, Verna had a balance due of $565.85 on her...

Accounting
1.2K views

What are examples of Owner's Equity