Calculate the pH of a buffer solution when 32.0 mL of a 0.25 M H2CO3 is mixed with 20.0 mL of a 0.15 M NaHCO3

Q: 2. A solution of 50.0 mL of 0.40 M NH3 is being titrated with a 0.40 M solution of the strong acid…

A: At half equivalence point concentration of conjugate acid and weak base becomes equal. Hence…

Q: 30.0 ml of 0.1 M NaOH is mixed with 20.0 ml of 0.1 M Ba(OH)2 and 20.0 ml of 0.2 M HClO4. What is the…

A: In this question, we want to determine the the pH of the resulting solution.  You can see details…

Q: A titration is carried out where 3 milliliters of 0.70M NaOH is added to 15 milliliters of 0.150M…

A: Volume of NaOH= 3 ml   molarity of NaOH 0.70M Volume of HCl =15 ml  Concentration of HCl= 0.150M pH…

Q: What is the pH of a buffer solution containing a.) 0.25 M acetic acid and 0.030 M sodium acetate b.)…

A: To calculate the pH you use the Henderson hasselbalch equation:pH = pKa + log ([A-]/[HA]where [A-] =…

Q: When mixed in appropriate amounts, each of the following mixtures can produce an effective buffer…

A: Given: A) NaOH and HF B) HCl and NaH2PO4 C) NaH2PO4 and Na2HPO4  D) HCl and NH4Cl E) NaHCO3 and…

Q: What is the pH of a buffer solution that contains 20.0mL of 0.10M H2CO3 and 50.0mL of 0.10M NaHCO3?

A: We would use Henderson Hasselbalch equation to calculate the pH of buffer solution.

Q: calculate the pH of a buffer that contains the given concentrations of a weak acid and its conjugate…

A: Buffer solution- It has tendency to maintain constant pH up on addition of small amount of acid or…

Q: A buffer solution is 0.478 M in H3PO4  and 0.362 M in NaH2PO4 . If Ka1 for H3PO4  is 7.5 x 10^-3 ,…

A: According to the Henderson Hasselbalch equation is given by, Ph = Pka + log ([salt] / [acid] ) The…

Q: Which of the following solutions is a buffer system? 0.10 M NaOH and 0.10 M NaCl O 0.10 M HF and…

A: Last option that is 0.1 M HC2H3O2 and 0.1 LiC2H3O2

Q: A student is trying to prepare a buffer solution with a pH of 9.00. Calculate the mass of potassium…

A: pH of a buffer is calculated using Henderson -Hasselbalch equation    pH = 9  pka = -log Ka  We…

Q: Which can act as acidic buffer? 1. NH4CI + NH40H 2. CH3COOH + CH3COONA 3. 40 mL of 0.1 M NaCN + 20…

A: An acidic buffer has pH less than 7. These are made from a weak acid and its salt, generally a…

Q: Calculate the change in pH when 7.00 mLof 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution…

A: Answer:- This question is answered by using the simple concept of calculation of change in pH of a…

Q: Mixing 50.0 mL of 0.200 M Na2HPO4 with 50.0 mL of 0.120 M HCI results in a buffer solution composed…

A: 1- First we will determine the mmoles of both species.  mmoles of Na2HPO4 = [ 0.200M × 50.0mL ]…

Q: Calculate the pH of a 0.100 M Na3PO4 solution. Find the mL of 0.40 M HClO4 that must be added to 100…

A:

Q: 5. Calculate the pH of a buffer system containing 1.0 M CH,COOH and 1.0 M CH,COON..

A: 5. Given information,      1.0 M CH3COOH and 1.0 M CH3COONa

Q: Blood is mainly buffered by HCO; /H2CO3 (H2CO3, Carbonic Acid, K.= 4.4x10 -") buffer system.…

A: The pH of a acidic buffer can be calculated by the Henderson-Hasselbalch equation as follows: pH=pKa…

Q: If a buffer solution is made from 300.0 mL of 2.2 M pyridine salt mixed with 350.0 mL of 2.0 M…

A:

Q: Calculate the pH of a NH4* buffer syster 0.010 M NH4CI.

A: Basic buffer pOH , Henderson equation is pOH = pKb + log (nsalt / nbase)  Where  pKb o NH3 = 4.74…

Q: Which of the following solutions is a good buffer system? A solution that is 0.250 M H2SO3 and 0.250…

A: The buffer system is a solution that resists a change in pH whenever an acid or a base is added. It…

Q: What is the pH in the titration of 50 ml of a 0.150 M solution of KOH with 15 ml of 0.150 M HBr?

A: Given  Volume of KOH = 50 ml = 0.050L Molarity of KOH = 0.150 M Volume of HBr = 15 ml = 0.015 L…

Q: Calculate the pH of a solution at the equivalence point when 200.0 mL of a 0.20 M solution of Lactic…

A:

Q: What is the pH in the titration of 50 ml of a 0.150 M solution of KOH with 55.00 ml of 0.150 M HBr?

A: pH :-  The negative logarithm to the base 10 of hydrogen ion concentration of a solution expressed…

Q: When a 28.6 mL sample of a 0.394 M aqueous hypochlorous acid solution is titrated with a 0.481 M…

A: The solution is given below -

Q: Which of the following is a buffer solution? 0.10 M Ca(OH)2 and 0.10 M KOH 0.10 M LiF and O.10 HF O…

A: Buffer is solution which contain weak acid + conjugate base of weak acid (or)  weak base + conjugate…

Q: A buffer solution is 0.308 M in H2 C204 and 0.252 M in NaHC204. If Kal for H2C2O4 is 5.9 x 10¬ª,…

A: The pH of a buffer solution prepared by mixing a weak acid with the salt of its conjugate base can…

Q: Calculate the pH of a buffer solution prepared by mixing 10 g KH2PO4 with 50 g K2HPO4 in 1 liter of…

A: Buffer is the solution of mixture of weak acid/weak base with its salt of strong base/strong acid.…

Q: What is the pH of buffer solution that contains 30 mL of 0.32 M HCN 22 mL of 0.15 NaCN

A: HCN and NaCN form buffer solution.    HCN is weak acid and it's salt (NaCN)  is strong base

Q: Which of the following can be classified as buffer solutions?a. 0.25 M HBr + 0.25 M HOBrb. 0.15 M…

A:

Q: A 0.139-M aqueous solution of NH3 (ammonia) has a pH of 11.2. Calculate the pH of a buffer solution…

A: The mixture of NH3 and NH4+ act as a basic buffer.The Henderson Hasselbalch equation for base is…

Q: a buffer solution is prepared via the combination of 1.246 M NH3 and 0.767 M NH4Cl (Ka=

A: Ka = 5.4954 x 10-10  PH = ?

Q: 6. Calculate the pH of the resulting solution when 20.0 ml of 0.25 M HCI is added with 20.1 ml of…

A: Using formula mixing of solutions:- Mmix.=M1V1+M2V2/V1+V2 After calculating [H+]=Mmix. Then use…

Q: Calculate the pH of a NH4+ buffer system when 40.0 mL of a 0.1 M NH3 is mixed with 40.0 mL of a…

A:

Q: 4. The molar ratio between a weak acid and its base conjugate was (3:2). Calculate the Ka of the…

A: Hendrson hasselbalch equation will be use to determine Ka value

Q: Calculate the pH of a buffer that is 0.210 M in NaHCO3 and 0.320 M in Na2CO3. Calculate the pH of a…

A:

Q: Consider a buffer solution contains 0.20 M NaF and 0.30 M HF:- (Ka (HF) = 5.0 x 104 What is the pH…

A: According to Handerson's equation  pH = pKa + logsaltacid=-log[5×10-4]+log0.200.30=-log5-log10-4+log…

Q: Please upload a photo of your solutions and answers below. * A. Calculate the pH of a buffer made…

A: Answer:- This question is answered by using the simple concept of calculation of pH of solution…

Q: What is the pH of a buffer made by mixing 0.30M CH3NH2 and 0.36M CH3NH3Br?

A:

Q: A 39.0 mL sample of a 0.540 M aqueous hypochlorous acid solution is titrated with a 0.390 M aqueous…

A: Given that : The volume of hypochlorous acid = 39.0 mL The molarity of hypochlorous acid = 0.540 M…

Q: Which solution would make an effective buffer? Solution 1: 1.0 M HCI and 1.25 M NaOH Solution 2: 1.0…

A:

Q: Which one of the following pairs cannot be mixed together to form a buffer solution? HONH2, HONH3CI…

A:

Q: Calculate the pH of a buffer solution made by dissolving 50.0 g of NaHCO3 and 20.0 g H2CO3 to make…

A: 1- First we will determine the moles of acid and salt :  a) moles of acid = [ mass / molar mass of…

Q: Calculate the change in pH when 8.00 mL of 0.100 M NaOH is added to 100.0 mL of a buffer solution…

A: In this question, we want to determine the change in pH .  You can see details explanation and…

Q: Calculate the pH of the 0.30 M NH3/ 0.36 M NH4Cl buffer system. What is the pH after addition of 20…

A:

Q: A 25.0 mL sample of 1.00 M HCI is titrated with 50.0 ml of 1.00 M NaOH solution. What is the pH of…

A:

Q: A buffer solution could be prepared from a. RbI and HI b.NaOH and HI c.KC2H3O2 and HC2H3O2 d.LiCN…

A:

Q: A 0.381-M aqueous solution of NH3 (ammonia) has a pH of 11.4. Calculate the pH of a buffer solution…

A:

Q: A phosphate buffer is prepared by mixing 200. mL of 0.250 M KH2PO4 and 300. mL of 0.400 M K2HPO4.…

A: Given : Molarity of Acid = 0.250 M Molarity of Base = 0.400 M Volume of Acid = 200 mL Volume of Base…

Q: A certain buffer solution contains equal concentration of X and HX. The Ka of HX is 10*. The pH of…

A: The buffer solution is the solution that resists the change in the pH of a solution when a small…

Q: When a 28.3 mL sample of a 0.414 M aqueous hypochlorous acid solution is titrated with a 0.432 M…

A: At the mid-point of titration, half of the millimoles of acid initially taken are neutralised by the…

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.