ZuoTi.Pro
Question

titration - due in ONE hour! please help asap!!!! :)

x.øi5tyle="font-family: Verdana; font-size: 13px; line-height: 20px; ">Titration of Na2CO3 with HCl. You may want to record your answersin the Data Collection section of your lab manual for use during the lab. (pKa1(H2CO3) = 6.352,pKa2(H2CO3) = 10.329).
a) What are the first and second equivalence volumes (Veq1 and Veq2) when 20.00 mL of 0.10 M Na2CO3 istitrated with 0.20 M HCl?
Veq1 = correct check mark mL

Veq2 = correct check mark mL

b) What do you expect the pH to be at the...
first midpoint of this titration? pH = wrong check mark

first equivalence point of this titration? pH = correct check mark

second midpoint of this titration? pH = wrong check mark

c) Calculate the pH at each of the following volumes of 0.20 M HCl added to 20.00 mL of 0.10 M Na2CO3.
mL 0.20 M HCl
pH
0.00
wrong check mark
5.00
wrong check mark
10.00
correct check mark
15.00
wrong check mark
20.00
wrong check mark
22.00
wrong check mark
science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1
OK. WOW. Can someone really help me?
answered by: Kelley
0 0
Add a comment
Answer #2
So why did you wait till ten if it was due at 11?
answered by: Mbaintu
0 9
Add a comment
Know the answer?
Add Answer to:
titration - due in ONE hour! please help asap!!!! :)
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Assume that 22.00 mL of NaOH (0.100 M) was consumed to titrate a 10.00 mL H2CO3...

    Assume that 22.00 mL of NaOH (0.100 M) was consumed to titrate a 10.00 mL H2CO3 solution (fully converted to Na2CO3) pKa1= 6.351 and pKa2= 10.329. (a) what is the concentration of the initial H2CO3 solution? (b) what is the pH of the H2CO3 solution before titration? (c) which is the principal (dominating) species when 5.00 mL of NaOH has been added? (d) what is the pH of the solution when 15.00 mL of NaOH has been added? (e) what...

  • Assume that 22.00 mL of NaOH (0.100 M) was consumed to titrate a 10.00 mL H2CO3...

    Assume that 22.00 mL of NaOH (0.100 M) was consumed to titrate a 10.00 mL H2CO3 solution (fully converted to Na2CO3). pKa1= 6.351 and pKa2= 10.329 (a) what is the concentration of the initial H2CO3 solution? (b) what is the pH of the H2CO3 solution before titration? (c) which is the principal (dominating) species when 5.00 mL of NaOH has been added? (d) what is the pH of the solution when 15.00 mL of NaOH has been added? (e) what...

  • A 0.1983 g sample of Na2CO3 was dissolved in 100.00 ml H20. That solution was titrated with 0.1531 M HCL as titrant. The...

    A 0.1983 g sample of Na2CO3 was dissolved in 100.00 ml H20. That solution was titrated with 0.1531 M HCL as titrant. The PKa1 and PKa2 of carbonic acid (the conjugate acid of the carbonate ion) are 6.351 and 10.329, respectively. 1.) What is the initial pH of the sodium carbonate solution. 2.) What is the first equivalence point (in ml HCL)? What is the pH at 1st eq.? 3.) What is the second equivalence point (in ml HCL)? What...

  • thank you In the lecture we used titration of sodium carbonate with hydrochloric acid as an example to explain how t...

    thank you In the lecture we used titration of sodium carbonate with hydrochloric acid as an example to explain how to titrate a weak base with a strong acid. Suppose that you are using HNO3 to titrate Na3PO4, describe how to calculate pH at following different titration stages: (a) before titration (b) at 19 equivalence point (c) at 3rd equivalence point (d) between 2nd and 3rd equivalence points (e) after 3rd equivalence point Calculation is not required, simply write the...

  • What is the pH at the second eq. point (40 mL acid added) of the titration of a weak base titrated with a strong acid: p...

    What is the pH at the second eq. point (40 mL acid added) of the titration of a weak base titrated with a strong acid: pKa1= 9.06 pKa2= 4.18 [base]=0.20 M 20 mL [acid]= 0.10 M

  • Please I need help with F AND G Extra Credit: The Titration of Na2CO3 with HCl...

    Please I need help with F AND G Extra Credit: The Titration of Na2CO3 with HCl (25 pts) (You must show work to earn credit!) 1. A 0.1983 g sample of Na2CO3 was dissolved in 100.00 mL H20. That solution was titrated with 0.1531 M HCl as titrant. The pKai and pKaz of carbonic acid (the conjugate acid of the carbonate ion) are 6.351 and 10.329, respectively. (a) (2.5 pts) Write the equilibrium expressions for Kai and Kaz, using H2A,...

  • Titration of a diprotic acid with a strong base You have a 10.0 mL solution containing...

    Titration of a diprotic acid with a strong base You have a 10.0 mL solution containing 0.5 M carbonic acid. Carbonic acid is diprotic, with pKa1 = 6.35 and pKa2 = 10.33. You titrate this solution using 1.00 M NaOH . (a) Calculate the pH of the solution before adding any NaOH. (b) Calculate the amount of NaOH needed to reach the first midpoint. What is the pH? (c) Calculate the amount of NaOH needed to reach the first equivalence...

  • Consider the titration of 30.00 mL of 0.200 M AsO.. with 0.150 M HCI. K for...

    Consider the titration of 30.00 mL of 0.200 M AsO.. with 0.150 M HCI. K for H AsO4 = 3 x 102 K., for H:AsO. = 6 x 10 K, for H:AsO4 = 1.1 x 10-7 a) How many milliliters of HCl are needed to reach the 1, 2nd, and 3rd equivalence points in this titration? b) What is the pH of the 0.180 M AsO solution before any HCl is added. c) What conjugate pair is present at the...

  • SUPPLEMENTAL PROBLEM: Consider the titration of 25.00 ml. of 0.180 M AsO with 0.150 M HCL...

    SUPPLEMENTAL PROBLEM: Consider the titration of 25.00 ml. of 0.180 M AsO with 0.150 M HCL Ka, for HsAsO-6x 10 K for HsAsO-1.1 x 10 Ka, for HsAsO-3 x 10 a) How many milliliters of HCI are needed to reach the 1". 2, and 3 cquivalence points in this titration? b) What is the pH of the 0.180 M AsO solution before any HCI is added c) What conjugate pair is present at the first midpoint? d) Determine the approximate...

  • The remaining questions will be about the the titration of 30.00 mL of 0.10 M HCl...

    The remaining questions will be about the the titration of 30.00 mL of 0.10 M HCl (analyte) with 0.20 M KOH (titrant). What is the pH when 0.00 mL of titrant have been added? _______________ The remaining questions will be about the the titration of 30.00 mL of 0.10 M HCl (analyte) with 0.20 M KOH(titrant). What is the pH when 7.50 mL of titrant have been added? The remaining questions will be about the the titration of 30.00 mL...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT