Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. calculate the ph of an aqueous solution that is 1.

Calculate the pH of an aqueous solution that is 1.0 M Na2CO3. Ka2 for H2CO3 is...

Free

80.2K

Verified Solution

Question

Chemistry

Calculate the pH of an aqueous solution that is 1.0 M Na2CO3.Ka2 for H2CO3 is 4.7 × 10-11. Please post full work andexplanation. Thank you.

Answer & Explanation Solved by verified expert
4.3 Ratings (917 Votes)

Na2CO3 concentration = 1.0

Kb1 = Kw / Ka2

     = 1.0 x 10^-14 / 4.7 x 10^-11

    = 2.13 x 10^-4

CO32- +   H2O    -------------> HCO3- +   OH-

1.0                                              0               0

1.0 - x                                          x               x

Kb1 = x^2 / 1.0 - x

2.13 x 10^-4 = x^2 / 1 - x

x = 0.0145

[OH-] = 0.0145 M

[H+] = 6.89 x 10^-13 M

pH = -log (6.90 x 10^-13)

pH = 12.16
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

Basic Math
1.2K views

6 ETO What is the area of this triangle in square units Explain or show...

Chemistry
1.2K views

3. Liquid Coffee Mate has many ingredients including corn syrup solids, vegetable oil, and sodium caseinate...

Mechanical Engineering
1.2K views

Several geothermal power plants are in operation in the united states and more are being built...

Biology
1.2K views

Natural gas and compressed natural gas can be described as Select all that may apply...

Biology
1.2K views

A reliable source about the usefulness of an herbal supplement is likely to be recognizable...

Geometry
1.2K views

15 If px 5 qx 3 8x rx 15 for all values of x and...

Basic Math
1.2K views

Kerri Jungemann owner of Flowers 4 You operates a local chain of floral shops Each...

Basic Math
1.2K views

The tuition costs, C, for a local community college aremodeled by C(h) = 250 +...

Statistics
1.2K views

Graph the line 3 y x 2 4x 2 K 10 21 8 FOLL abou

Accounting
1.2K views

Depreciation in accounting is the process of allocating to expense the cost of an...

Accounting
1.2K views

@ Be Mimolap (Med tap- Calculation 4. Credit balance Amount added Finding balance Credit balance...

Accounting
1.2K views

Degollado Corporation's most recent income statement appears below: Income Statement For the...