pH calculation of mixture 16.42
b] 165.0 mL of 0.11M C2H5NH2 with 285.0 mL of 0.20M C2H5NH3Cl
THANKS!
Homework Answers
millimoles of NaF = 225 x .32 = 72
final volume = 160 + 225 ml = 385 ml
[HF] = 40/385 M = 0.104M
[NaF] = 72/385 M = 0.187M
pKa of HF = 3.14
pH = pKa + log[NaF]/[HF]
pH = 3.14 + log(0.187/0.104)
pH = 3.14 + 0.255
pH = 3.359
1.) 160.0 mL of 0.24 M HF with 225.0 mL of 0.30 M NaF find pH...
1.) 160.0 mL of 0.24 M HF with 225.0 mL of 0.30 M NaF find pH 2.) 180.0 mL of 0.11 M C2H5NH2 with 275.0 mL of 0.21 M C2H5NH3Cl find pH 3.) Calculate the ratio of NaF to HF required to create a buffer with pH = 3.80. find [NaF][HF] = - My answer was 2.45 and it said it was wrong
Use the Henderson–Hasselbalch equation to calculate the pH of each solution: Part B a solution that...
Use the Henderson–Hasselbalch equation to calculate the pH of each solution: Part B a solution that contains 0.775% C5H5N by mass and 0.950% C5H5NHCl by mass. ( Express your answer using two decimal places.) Part C a solution that is 12.0 g of HF and 22.5 g of NaF in 125 mL of solution (Express your answer using two decimal places.) - Calculate the pH of the solution that results from each of the following mixtures. Part A4 150.0 mL...
Calculate the pH of the solution that results from each of the following mixtures. A. 140.0...
Calculate the pH of the solution that results from each of the following mixtures. A. 140.0 mL of 0.27 M HF with 220.0 mL of 0.31 M NaF B. 170.0 mL of 0.12 M C2H5NH2 with 275.0 mL of 0.20 M C2H5NH3Cl
1) Calculate the pH of the solution that results from each of the following mixtures. A) 150.0 mL...
1) Calculate the pH of the solution that results from each of the following mixtures. A) 150.0 mL of 0.26 M HF with 225.0 mL of 0.32 M NaF B) 165.0 mL of 0.12 M C2H5NH2 with 275.0 mL of 0.22 M C2H5NH3Cl 2) A) As a technician in a large pharmaceutical research firm, you need to produce 100. mLof a potassium dihydrogen phosphate buffer solution of pH = 6.91. The pKa of H2PO4− is 7.21. You have the following...
140.0 mL of 0.25 M HF with 230.0 mL of 0.32 M NaF The Ka of hydrofluoric acid...
140.0 mL of 0.25 M HF with 230.0 mL of 0.32 M NaF The Ka of hydrofluoric acid is 6.8 x 10−4. Express your answer using two decimal places. 185.0 mL of 0.11 M C2H5NH2 with 270.0 mL of 0.20 M C2H5NH3Cl Express your answer using two decimal places.
29. E 2.- b. 125.0 mL of 0.10 M NH; WILT JUUM 16. Calculate the pH...
29. E 2.- b. 125.0 mL of 0.10 M NH; WILT JUUM 16. Calculate the pH of the solution that results from each mixture. a. 150.0 mL of 0.25 M HF with 225.0 mL of 0.30 M NaF b. 175.0 mL of 0.10 M C H NH, with 275.0 mL of 0.20 M CH,NH4Cl 17. Calculate the ratio of NaF to HF required to create a buffer with pH = 4.00. IT YILC concentration
Calculate the pH of the solution Part B 165.0 mL of 0.10 M C2H,NH2 with 270.0...
Calculate the pH of the solution
Part B 165.0 mL of 0.10 M C2H,NH2 with 270.0 mL of 0.22 M C2H5NH3Cl Express your answer using two decimal places.
You may want to reference (Pages 659 - 662) section 16.3 while completing this problem. Calculate...
You may want to reference (Pages 659 - 662) section 16.3 while completing this problem. Calculate the pH of the solution that results from each of the following mixtures. Part A 160.0 mL of 0.25 M HF with 2250 mL of 0.32 M NaF The K, of HF is 6.6 x 10-4 Express your answer using two decimal places. ITO AL OO ? pH = Submit Request Answer Part B You may want to reference (Pages 659 - 662) section...
What is the pH of the mixture made by adding 75.0 mL of 0.15 M NaF,...
What is the pH of the mixture made by adding 75.0 mL of 0.15 M NaF, 100.0 mL of 0.12M HF and 75.0 mL of 0.10 M KOH?
10. Which of the following mixtures has lower pH a) Equal volumes of 0.10M HCIO, and...
10. Which of the following mixtures has lower pH a) Equal volumes of 0.10M HCIO, and 0.10M NaOH b) Equal volumes of 0.10M HCIO and 0.10M NH Ans: 1. Does the pH increase, decrease or remain same on addition of each of the following a) NH4NO) to NHs solution Ans: b) Na:CO) to NaHCO3 solution Ans: c) NaCIO4 to NaOH solution Ans: 12. Which of the following solutions give a buffer solution when equal volumes are mixed? a) 0.10M NaF...
29. E 2.- b. 125.0 mL of 0.10 M NH; WILT JUUM 16. Calculate the pH of the solution that results from each mixture. a. 150.0 mL of 0.25 M HF with 225.0 mL of 0.30 M NaF b. 175.0 mL of 0.10 M C H NH, with 275.0 mL of 0.20 M CH,NH4Cl 17. Calculate the ratio of NaF to HF required to create a buffer with pH = 4.00. IT YILC concentration
Calculate the pH of the solution
Part B 165.0 mL of 0.10 M C2H,NH2 with 270.0 mL of 0.22 M C2H5NH3Cl Express your answer using two decimal places.
You may want to reference (Pages 659 - 662) section 16.3 while completing this problem. Calculate the pH of the solution that results from each of the following mixtures. Part A 160.0 mL of 0.25 M HF with 2250 mL of 0.32 M NaF The K, of HF is 6.6 x 10-4 Express your answer using two decimal places. ITO AL OO ? pH = Submit Request Answer Part B You may want to reference (Pages 659 - 662) section...
10. Which of the following mixtures has lower pH a) Equal volumes of 0.10M HCIO, and 0.10M NaOH b) Equal volumes of 0.10M HCIO and 0.10M NH Ans: 1. Does the pH increase, decrease or remain same on addition of each of the following a) NH4NO) to NHs solution Ans: b) Na:CO) to NaHCO3 solution Ans: c) NaCIO4 to NaOH solution Ans: 12. Which of the following solutions give a buffer solution when equal volumes are mixed? a) 0.10M NaF...
Most questions answered within 3 hours.
-
Humans have used horses for transportation for millions of
years. Therefore, they will use horses for...
asked 1 hour ago -
The following are the Jensen Corporation's unit costs of making
and selling an item at a...
asked 1 hour ago -
Does direct Medicare reimbursement of Advanced practice nurses
increase access to their services?
asked 2 hours ago -
List and explain why a company would choose to use a
published
compensation survey vs. creating...
asked 2 hours ago -
A discrete random variable X can take values from 1 to 10. Find
the variance of...
asked 2 hours ago -
The primary financial goal of a corporation is to maximize:
shareholders wealth.
earnings per share.
stock...
asked 2 hours ago -
determine whether the vectors u=(1,2,3,), v=(-2,1,0) and
w=(1,0,1) are linearly dependent or independent.
asked 3 hours ago -
python
Define a function called print_values which takes a dictionary
object as a parameter. The function...
asked 4 hours ago -
In Chapter 1 you created a program named Triangle in
which you displayed a seven-line triangle...
asked 3 hours ago -
Research question: What are the differences between separately
stated and non separately stated transactions in an...
asked 4 hours ago -
By using Arduino write a code that connects two LEDs to two
push-buttons. Each button controls...
asked 5 hours ago -
Bank of America has bonds that pay a coupon interest rate of 5.5
percent and mature...
asked 6 hours ago