QUESTION 5 What is the pH of a buffer system prepared by dissolving 10.70 grams of NH 4CI and 30.00 mL of 12 M NH 3 in enough water to make 1.000 L of solution? K b = 1.80 x 10 for NH 3. 9.26 9.51 O 11.32 9.00 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save A

Q: 3, What change will be caused by the addition of a small amount of the weak base B- to a solution…

A: Answer:- This question is answered by using the simple concept of ionisation of weak acid and the…

Q: A student is titrating 150.0 ml of a 0.300 M solution of lactic acid (pKa of lactic acid is 3.85)…

A: at equivalence point, moles of acid = moles of base

Q: Calculate the pH when 32.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH,NH, (Kb = 4.4 ×…

A: Given: Concentration of HBr = 0.200 M Volume of HBr solution = 32.0 mL = 0.032 L…

Q: Which of the following is a means of creating a buffer of H2CO3/NaHCO3? A) Mixing 10 mL of 1 M HNO,…

A: -> Buffer contain weak acid or weak base with their conjugate base or conjugate acid…

Q: Calculate the pH of a solution after titrating 20.00 mL of 0.11 M nitric acid with 12.00 ml of 0.25…

A: Introduction to concept :- Strong acid (HNO3) is titrated against Strong base (NaOH) chemical…

Q: QUESTION 11 If the pKa of HCHO2 is 3.74 and the pH of an HCHO2 /NaCHO2 buffer solution is 3.74,…

A: The given information is as follows:        The pKa of HCHO2 = 3.74The pH of the  solution = 3.74The…

Q: Calculate the % dissociation for the following monoprotic weak acid:  100.0 mL of 0.303 M HA whose…

A:

Q: How many milliliters of 0.120 M NaOH are required to titrate 50.0 mL of 0.0998 M hypochlorous acid…

A: Given: Molarity of NaOH = 0.120 M (i.e. mol/L) Molarity of hypochlorous acid [HOCl] = 0.0998 M (i.e.…

Q: In the titration where # equivalent of acid = #equivalents of base, how many mL of 0.50 N NaOH…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: Question 4 A buffer solution includes a weak acid and its conjugate base. Include states of matter.…

A: A buffer is a solution of weak base and its salt. Here, Weak base is NH3 i.e, NH4OH. Salt of weak…

Q: QUESTION 6 A titration of 45.0 mL of 0.17M HNO2 with a 0.25M LIOH solution. What is the pH of the…

A: Given molarity of HNO3 = 0.17 M Volume = 45 mL = 0.045 L So,  Number of moles of strong acid HNO3 =…

Q: The pOH of 10 % titration of 10 mL of 0.10 M HCl with 0.10M NaOH is A 12.90 В 1.10 C) 10.0 D 7.00

A:

Q: Macmillan Learning A 50.0 mL solution of 0.172 M KOH is titrated with 0.344 M HCl. Calculate the pH…

A: Note: Since you have posted a question with multiple sub parts, we will provide the solution only to…

Q: QUESTION 10 If a chemist wishes to prepare a buffer that will be effective at a pH of 5.10 at 25°C,…

A: A buffer is a solution which resists any change in pH on adding a small amount of acid or base.It is…

Q: Pls help ASAP

A: Given data set: The diprotic acid is H2A A2- is the conjugate base of HA- . It is basic in nature…

Q: If you measure a concentration of 54 mmol/L in the titration at pH = 10 and a concentration of 13…

A:

Q: Calculate the pH of an acetic acid/acetate buffer after the addition of 21.60 mL of a .200 M NaOH to…

A:

Q: A lab mate accidentally spilled 10 mL of 10 M HCl onto the petri dish culturing Azotobacter. How…

A: Buffer solution is defined as the aqueous solution which consists of a weak base/acid and its…

Q: How many equivalents of K+ and SO42- are in 1.0 L of 1.0 M solution of K₂SO4? Question 5 options:…

A:

Q: What is the pH of a buffer prepared by adding 0.809 mol of the weak acid HA to 0.507 mol of NaA in…

A: we have to calculate the pH of solution

Q: A solution is made by dissolving 33.5 g of Ba(NO₂)2 in 500.0 mL of water. Using Kb(NO₂) = 2.2 ×…

A:

Q: Question 17 You titrate a 0.125 L of 0.250 M ammonia solution with 0.500 M HCI. What is the pH at…

A: we have to calculate the pH of solution at equivalence point

Q: QUESTION 4 Over what range of pH is a HOCI/NaOCI buffer effective? O pH 1.0 - pH14.0 o pH 6.5 - pH…

A: Buffer :  The solution which resist the change in the pH of solutions is called as Buffer solution.…

Q: Which of the following could produce a buffer when added in appropriate amount to a 0.1 M solution…

A: In chemical solutions, a buffer system plays a crucial role in maintaining a stable pH level,…

Q: A 46.2 mL sample of a 0.469 M aqueous hypochlorous acid solution is titrated with a 0.314 M aqueous…

A:

Q: QUESTION 3 A solution is prepared by adding 100 mL of0.2 M hydrochloric acid to 100 mL of 0.4 M…

A: In this equation, we want to determine the pH. How we can determine, I will give details Solution…

Q: You are making 100mL of a 0.66M phosphoric acid buffer with a pH of 7.0. What is the concentration…

A:

Q: Consider hydrobromic acid being titrated with sodium hydroxide. What is present at the equivalence…

A: Given that, hydrobromic acid (HBr) being titrated with sodium hydroxide (NaOH). We have to tell…

Q: 2. If 358 mL of H2SO4 is neutralized with 60.0 mL of 1.50 M NAOH, what is the initial concentration…

A: Answer: 2 Given: Volume of H2SO4 = 358mLConcentration  of  H2SO4 =?? Volume of NaOH=…

Q: Calculate the pH of a HF/F- buffer solution after the addition of 32.65 mL of 0.100 M NaOH to 25.00…

A: A buffer solution is formed by the mixing of a weak acid and its conjugate base, or vice versa. The…

Q: Buffers remote

A: Given: Ionisation constant Ka = 1.8×10-5 Concentration of acetic acid = [HC2H3O2] = 0.1 M…

Q: Question 4 I'm not sure how to do this question.

A:

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.