A buffer is prepared by combining 17.6 g of H2CO3 (carbonic acid) with 220 mL of 0.18 M NAOH and diluting to 3.5 L. (K, = 4.3 x 107) (MM H2CO3 = 62 g/moll) %3D a) Calculate the initial moles of acid (before reaction) (. b) Calculate the initial moles of the OH base (before reaction) c) Calculate the moles of H2CO3 and the conjugate base HCO3 after reaction( d) Calculate the concentrations H2CO3 and the conjugate base HC03 after the reaction e) Determine the pH of the buffer H,CO, + OH 2 HCO, + H,0 Initial moles a b After reaction Concentration

Q: A) B) C) D) To make a buffer that keeps solutions at a pH of approximately 3.85, what Ka value…

A:

Q: 12. How much 1.0 M HCI is required to change the pH of 0.25 liter of 0.10 M glycine buffer from pH…

A: At pH 10, the equilibrium reaction in the buffer solution of glycine and anionic form of glycine…

Q: A 100.0 mL solution of NaOH reaches the equivalence point when 33.46 mL of a 0.075O M solution of…

A: Volume of solution NaOH=100.0mL At equivalence point volume of HCl=33.46mL Concentration of…

Q: How many grams of KHCOO (MM = 84.12 g/mol) must be added to 1.00 L of 0.256 M HCOOH to make a buffer…

A: pH of an acidic buffer solution can be calculated from Henderson hasselbalch equation. pH = pKa +…

Q: How does the buffer react to the addition of acids and bases? In comparison, how does water react to…

A: Buffer solutions are aqueous solutions that resist the change in pH on addition of small amount of…

Q: the answer) Calculate the pH of a buffer that is 0.158 M HCIO and 0.099 M NaCIO. The K, for HCIO is…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Select all the buffer solutions from the list shown below. a) 200 mL 0.25 M of NagPO4 and 200 mL of…

A: Buffer solution: A mixture of weak acid and the salt of same acid with a strong base.

Q: der the following buffer system, made up of HOCI and OCT HOCI+ H₂O OCI + H₂O' H₂O NaOCI- Na + oci A)…

A: "As you have posted multiple questions, so we will solve the first question posted and please post…

Q: 4. 20.0 mL of 0.200 M CH3COOH is titrated with 0.100 M NaOH. a) What volume of NaOH is necessary to…

A: Given-> Volume of CH3COOH = 20.0 ml Molarity of CH3COOH = 0.200 M Molarity of NaOH = 0.100 M

Q: A buffer solution that is 0.317 M in CH,COOH and 0.317 M in CH3COONA has a pH of 4.74 . Addition of…

A: Explained as follows

Q: If the pKa of HCH0, is 3.70 and the pH of a HCHO, / NaCHO, buffer solution is 3.90, which of the…

A:

Q: 12. Which of the following can NOT be a buffer solution? (a) CH3COOH / CH3COONA (b) HF / LiF (c) NH3…

A: We have to choose which is not buffer solution .

Q: 3) A buffer system is made of 0.30M HF (K. = 7.5 x 10“) and 0.25M NaF. a) Calculate the pH of this…

A:

Q: 5. You start with 25.00 mL of 1.00 M NaOH. After 4.32 g leaves produce CO₂ over a period of days,…

A:

Q: 4.1 Calculate the pH of a solution obtained by mixing 500.00 mL of 0.10 M NH3 with 200.0 mL of 0.15…

A: Given: Volume of NH3 = 500.00 mL Concentration of NH3 = 0.10 M Volume of HCl = 200.0 mL…

Q: Which of the following can be used to prepare a buffer solution? (The K₂ of HF is 6.4*10-4). O Only…

A:

Q: IReview Topies] (Reterences) Use the References to access important values if needed for this…

A: pH change =? pH change = pH after Addition - pH before addition Number of Mol of KOH = 0.124 mol […

Q: How many moles of sodium hydroxide would have to be added to 150 mL of a 0.417 M nitrous acid…

A:

Q: I pH

A:

Q: nts) Consider the following buffer system, made up of E HOCI+H₂OOCI + H₂O NaOCI H₂O Na + OCI A) Is…

A: A buffer system may be if two types, one is that which consist of a weak acid with its conjugate…

Q: 4. Which of the following solutions is a buffer? (A) 0.10 M CH3COOH and 0.10 MCH3COONa (B) 0.10 M…

A: Answer Weak acid and its conjugate base is called buffer solution

Q: what volume of 13,4 H ammonia (NH3) must be added to 250.0m) of 0.850 M HNO3 to form a buffer wi th…

A: Basic-buffers are made-up of weak base. Their solution contains this base together with a salt…

Q: Q2 A 50.0 ml 0.100 M of a diprotic acid acid (H2M) solution is titrated with 0.200M NaOH. a) How…

A: In an acid-base titration, the acid and base react to undergo neutralization reaction. The reaction…

Q: Which of the following is a means of creating a buffer of H₂CO3/NaHCO3? A) Mixing 10 mL of 1 M HNO3…

A: A buffer solution is a solution that resists changes in pH when small amounts of an acid or a base…

Q: The following solution mixture which is/are buffer... Select one or more. Select 5 correct answer(s)…

A: The mixture of a weak acid and its salt can behave like a good acidic buffer. On the other hand, the…

Q: Which of the following does not represent the correct formula for a compound of sodium? A) NaCI B)…

A: Sodium is an element of the alkali metal group and it has a valency of 1. We have to identify the…

Q: Calculate the [Y"] in a saturated solution of YF3 in 0.003150 M NaF(). (Kap for YF3 = 8.6 x 10") %3!

A: Solubility product (Ksp) is defined as the products of ions present in a solution of a salt.

Q: Determine the pH change when 0.049 mol HI is added to 1.00 L of a buffer solution that is 0.362 M in…

A: The objective of the question is to determine the pH change.It is given that,The moles of HI are…

Q: Can you show me how to work it out

A: Given: Ka = 1.78 x 10-4 pH = 3.80

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.