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