---**Q15.16***Homework • Unanswered***Problem**: What is the pH for a solution with $[OH^-] = 8.9 \times 10^{-9}$ M?*Instruction*: Respond with the correct number of **significant figures in scientific notation** (Use E notation and only 1 digit before decimal e.g. 2.5E5 for $2.5 \times 10^5$)*Response Box*: Type your numeric answer and submit.**Status**: Unanswered • 2 attempts left---**Method 2**: Convert $[OH^-]$ to pOH, then convert pOH to pH.---**Q15.17***Homework • Unanswered***Problem**: Using method 2, determine the pH of the previous solution.*Instruction*: Respond with the correct number of **significant figures in scientific notation** (Use E notation and only 1 digit before decimal e.g. 2.5E5 for $2.5 \times 10^5$)*Response Box*: Type your numeric answer and submit.---**Note**: Remember to follow the method of converting $[OH^-]$ to pOH first before finding the pH, using the relation $ \text{pH} = 14 - \text{pOH} $.---

1) [OH-] = 8.9 * 10-9 M Using method 1 : we will determine hydronium ion concentration by using Kw of water . kw = 1.0 * 10-14 and [OH-] [H3O+] = Kw [H3O+] = Kw / [OH-] = (1.0 * 10-14 ) /(8.9*10-9 ) = 1.12 * 10-6 M pH = - log [H3O+] = -log(1.12 *10-6 ) pH = 5.95 Using method 2: first we will determine pOH from given concentration: pOH = -log[OH-] = -log(8.9 *10-9 ) pOH = 8.05 pH + pOH = 14 pH = 14- pOH pH = 14 - 8.05 pH = 5.95 ans : pH = 5.95

Science

Chemistry

Q15.16 Homework Unanswered What is the pH for a solution with [OH-] = 8.9 × 10-9 M? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit Unanswered • 2 attempts left thod 2: Convert [OH-] to pOH, then convert pOH to pH. Q15.17 Homework Unanswered Using method 2, determine the pH of the previous solution. Submit Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit Op

Q15.16 Homework Unanswered What is the pH for a solution with [OH-] = 8.9 × 10-9 M? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit Unanswered • 2 attempts left thod 2: Convert [OH-] to pOH, then convert pOH to pH. Q15.17 Homework Unanswered Using method 2, determine the pH of the previous solution. Submit Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit Op

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

(please type answer no write by hend)
2req #3 w 20 חי E D An aqueous solution contains 0.315 M ammonia. Calculate the pH of the solution after the addition of 1.58x102 moles of nitric acid to 125 mL of this solution. (Assume that the volume does not change upon adding nitric acid). pH = C Submit Answer $ 4 R F Reminders 28 07 de % 5 V Use the References to access important values if needed for this question. Retry Entire Group 5 more group attempts remaining T G 6 B Y Ⓡ H & ve 7 tv U N A * 00 8 J A I M ( 9 K A O ) 0 < o 1 36 7 L W P Email Instructor A Previous LO CA : I V 11 + [ Next Save and Exit O 11 I 1
a,b,c please :)
please answer fast i give upvote
The pH of an acidic solution is 5.23. What is [H+]?
a.
Correct. What is the concentration of H* in 0.0072 MHCIO4? [H]=0.0072 Hint HCIO4 is a strong acid. Correct. pH = What is the pH of the solution? 2.14 M Correct. [OH]= 1.38E-12 What is the OH concentration in the solution? For scientific notations, use the format 1.0E-10, for example. M Assistance Used Incorrect. Compare the pH at double concentration to the pH at the original concentration. How would you expect the pH to change with an increase in [H]? By how much does the pH change if the concentration of H is doubled?
What are [H3O+], [OH−], and pOH in a solution with a pH of 10.65?
Solve it asap
HQ15.32 Homework • Unanswered. Due Mar 8th, 11:59 PM Calculate the pH of a 0.045 M KF solution. Please express the answer in scientific notation. ✪ Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 10³) Type your numeric answer and submit Unanswered. 1 attempt left ! Please type your answer to submit Submit
(Please show your work so I can understand any math, also I have attached a special period table in the images in case you need it.) a) Calculate the [OH−] value of the following aqueous solution: [H3O+]=9.4×10^−11 M b) Enter the formula for the conjugate acid for the base ApO42−.
Bha Please don't provide the handwriting solution