27) What is this buffer's approximate pH range in which it is still effective?а.4.32-6.32b. 4.21-6.21c. 4.43-6.43d. Any pH below 728) If I want a solution that stays around a pH of 5.0, was this a good acid to use? Provide proof.a. Yes because a pH of 5.0 is acidic and this buffer is comprised of a weak acid with its conjugatebase.b. Yes because a pH of 5.0 is within the pH range of the buffer's efficiency.c. No because this buffer is made using a weak acid so it would be more effective in a solutionwith a basic pH.d. No because a pH of 5.0 is lower than the pKa of the weak acid. (Use this to answer Qs 24-29.) Bill Nye the Science Guy is at it again and wants to show the chemistrystudents how a buffer works. He creates a buffer by mixing 50.0 mL of 0.450 M HF and 50.0 mL of 0.450MF. Just like the titration experiment, he has no idea how it works. Because of your generous nature, youdecide to help him with the following questions.24) To make a buffer, what needs to be mixed together?a) A weak acid with its conjugate base or a weak base with its conjugate acidb) A strong acid and a strong basec) A strong acid and a weak based) A strong base and a weak acid

Given: Concentration of HF = 0.450 M Volume of HF solution = 50.0 mL Concentration of F- = 0.450 M…

(Use this to answer Qs 24-29.) Bill Nye the Science Guy is at it again and wants to show the chemistry students how a buffer works. He creates a buffer by mixing 50.0 mL of 0.450 M HF and 50.0 mL of 0.450 MF. Just like the titration experiment, he has no idea how it works. Because of your generous nature, you decide to help him with the following questions. 24) To make a buffer, what needs to be mixed together? a) A weak acid with its conjugate base or a weak base with its conjugate acid b) A strong acid and a strong base c) A strong acid and a weak base d) A strong base and a weak acid

(Use this to answer Qs 24-29.) Bill Nye the Science Guy is at it again and wants to show the chemistry students how a buffer works. He creates a buffer by mixing 50.0 mL of 0.450 M HF and 50.0 mL of 0.450 MF. Just like the titration experiment, he has no idea how it works. Because of your generous nature, you decide to help him with the following questions. 24) To make a buffer, what needs to be mixed together? a) A weak acid with its conjugate base or a weak base with its conjugate acid b) A strong acid and a strong base c) A strong acid and a weak base d) A strong base and a weak acid

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...

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A) Calculate the number of moles of NaOH used to neutralize the 5mL of 1.0M HCl. B) Calculate the amount of H l (grams) neutralized by the 1.0 NaOH in the control experiment. C) Calculate the difference in NaOH volume between the back titration average and the control experiment average. D) Calculate the amount of HCl (grams) neutralized by the difference in NaOH volume.
1. Buffers that match the pH of blood and the cytoplasm are commonly required in scientific experiments. If you were studying the effects of lactic acid on muscles and needed to design a buffer that would have a pH of 7.2, what chemical components would you select and in what proportions? Include relevant calculations in your answer. Answer: Submit your completed Assignment to Moodle at the end of this lesson.
E www-awu.aleks.com/alekscgi/x/ O ACIDS AND BASES Calculating the pH of a weak base titrated with a strong acid An analytical chemist is titrating 93.8 mL of a 0.6300M solution of piperidine (C5H₁NH) with a 0.07100M solution of HNO3. The pK, of piperidine is 2.89. Calculate the pH of the base solution after the chemist has added 986.9 mL of the HNO3 solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added. Round your answer to 2 decimal places. pH = Explanation 66°F Partly sunny Check X S Q Search AS B W UNDER © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Ce CEREDARE FR X
Write two chemical equations that show how the bicarbonate buffer system compensates for acidosis and alkalosisand two equations that show how the phosphate buffersystem compensates for these imbalances.
What volume (mL) of 0.2173M NaOH is required to titrate 50.00mL of 0.2980M HCI ?In the titration of 50.00mL of 0.2980M HCl. 71.93mL of 0.2173M NaOH was required to reach the phenolphthalien endpoint. Calculate the percent error between the predicted amount and the experimental amount. What does this tell you about the concentration of the NaOH? This is based on your answers to questions 1 and 2. Question 3 options: The concentration of the NaOH is 0.2173M. The concentration of the NaOH is stronger that 0.2173M. Nothing new The concentration of the NaOH is weaker than 0.2173M. Please answer fast i give upvote.
Using the letters on the image, identify each component of the titration set-up. Buret clamped to a ring stand with a beaker underneath. The letter A appears at the top of the buret, the letter B appears midway down the buret, the letter C appears at the bottom of the buret, the letter D appears next to the beaker, and the letter E appears on the other side of the buret, near the ring stand.
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