Strong base is dissolved in 695 ml. of 0.600 M weak acid (K, 3.67 x 10) to make a buffer with a pH of 4.15. Assume that %3! the volume remains constant when the base is added. HA(aq) + OH (aq) H,O(0) + A (aq) Calculate the pK, value of the acid, and determine the number of moles of acid initially present. initial amount: mol HA pK, = When the reaction is complete, what is the concentration ratio of conjugate base to acid? (A) (HAJ How many moles of strong base were initially added? amount added: mol OH

Strong base is dissolved in 695 ml. of 0.600 M weak acid (K, 3.67 x 10) to make a buffer with a pH of 4.15. Assume that %3! the volume remains constant when the base is added. HA(aq) + OH (aq) H,O(0) + A (aq) Calculate the pK, value of the acid, and determine the number of moles of acid initially present. initial amount: mol HA pK, = When the reaction is complete, what is the concentration ratio of conjugate base to acid? (A) (HAJ How many moles of strong base were initially added? amount added: mol OH

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

show all work in dimensional analaysis
Chemistry How to balance centrifuge with odd number of vials with no balancing vials. Given 24 slots, with 7, 9, 11, 13, 15, 17, 19 vials.
Chemistry Question 12: Split injection in GC entails that some of the eluate from the column is split off and does not enter the detector to prevent overload of the detector. some of the sample is split off so that it does not enter the column to prevent overload of the column. a sample is split into smaller volumes that enter the column sequentially to prevent overload of the column. O All these statements are correct. O None of these statements is correct.
Please Answer This Using Graph properly!!
Need help with homework
You try to measure volume off of a pipette as best as you can. You make sure that you keep the meniscus at eye level. However, overtime you notice that your posture has not been consistent. You realize that you have had minor angle changes every time you tried to read your volume. Your data will have error because of this. systematic random
Match each pair of temperatures correctly. Drag statements on the right to match the left. 5°C 41°F 303 K 86°F -35°C 238 K Do you know the answer? I know It Think so Unsure No idea
please answer
A car traveling at 40.0 m/s applies the brakes and decelerates uniformly at a rate of 2.5 m/s?. a) How far does the car travel in 3.0 s? b) What is its velocity at the end of this time interval? c) How long does it take for the car to come to a stop? d) What distance does the car travel before coming to a stop? (i) How far does the car travel in 3.0 s? m (Please type/enter your answer here) (ii) What is its velocity at the end of this time interval? m/s (Please type/enter your answer here) (ii) How long does it take for the car to come to a stop? (Please type/enter your answer here) (iv) What distance does the car travel before coming to a stop? m (Please type/enter your answer here)
Can you show me the calculations please ? I'm not following how you got to this number ?
7
10 If powdered elemental calcium and powdered elemental sodine are poured into a metal beaker and then heated stromgly, a very vigorous chemicall reaction takes place, and the Paferemces calcium iodide is formed. O element O compound O heterogeneous mixture Submit Answer Try Another Version 1 item attempt remaining Previous Ne Cengage Learning | Cengage Technical Support DELL