Suppose you need a buffer with a pH of 4.9. Which conjugate acid-base pair should you use? O sodium hydrogen carbonate (NaHCO3, pKa = 10.3) and sodium carbonate (Na2CO3) O hydrocyanic acid (HCN, pKa = 9.3) and potassium cyanide (LİCN) O hypochlorous acid (HCIO, pKa = 7.5) and potassium hypochlorite (KCIO) O acetic acid (HC2H3O2, pKa = 4.8) and sodium acetate (NaC2H3O2)

Q: You need to produce a carbonic (H 2 CO3)/bicarbonate buffer solution that has a pH of 4.50. You…

A: Carbonic/bicarbonate buffer solution has a pH of 4.50 . 0.60 L solution contains 0.20 moles of…

Q: a buffer solution consisting of 0.15 moles of ammonia dissolved in half a liter of water. how much…

A: A buffer solution s composed of the weak acid and its conjugate base or weak base and conjugate…

Q: What concentration of sodium benzoate must be used to create a buffer solution with a pH of 5.63 if…

A: Use a udic buffer equation to get MOLARITY of sodium benzoate. Buffer mixture is defined as an…

Q: You need to prepare an acetate buffer of pH 5.45 from a 0.654 M acetic acid solution and a 2.53 M…

A: The number of moles of acetic acid (nAcOH) in 480 mL 0.654 M solution is calculated using equation…

Q: Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of sodium cyanate (NaCNO) and…

A: Given information,    0.20 mole of sodium cyanate (NaCNO) and 1.0 mole of cyanic acid (HCNO)…

Q: How many grams of ammonium sulfate ((NH4)2 SO4) would you need to add to 425 mL of 0.28 M ammonia…

A:

Q: Calculate the pH of a bicarbonate/carbonate buffer in which the concentration of sodium bicarbonate…

A: The buffer is basically a solution whose pH does not change much by adding a small amount of acid or…

Q: Given the Kb's of three weak bases and the Ka's of two weak acids choose the one that could be used…

A: From the given condition it is clear that the pH of the buffer system is 6.35. Then the component of…

Q: What quantity in moles of NaOH need to be added to 200.0 mL of a 0.200 M solution of HF to make a…

A:

Q: A chemistry graduate student is given 100. mL of a 1.40M methylamine (CH3NH2) solution. Methylamine…

A: pKb  = - log Kb            =  - log (4.4  * 10-4 )          = 3.36pKa = 14-pKb       = 14- 3.36…

Q: You need to prepare an acetate buffer of pH 5.42 from a 0.647 M acetic acid solution and a 2.43 M…

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

Q: 4. Formic acid, HFor, has a K, value equal to about 1.8 × 10¬4. A student is asked to prepare a…

A: A buffer solution is formed by the mixture of acid and its conjugate base in such a way so that it…

Q: Lactate is an important component in some intravenous solutions. Given pKa = 3.86 for lactic acid,…

A: pH = pKa  +  log ( [ conjugate base ]/[weak acid] ) ---------(i) pKa = 3.86 ( given) HC3H5O3…

Q: 4. Human blood is slightly basic in nature with a normal pH range of 7.35-7.45. The blood pH is…

A: a) The component of the buffer that will react to the added acid has to be determined and explained.…

Q: The pH of a bicarbonate-carbonic acid buffer is 6.18. Calculate the ratio of the concentration of…

A: The ratio of [H2CO3] to that of [HCO3-] is determined by using Henderson-Hasselbalch equation.

Q: The pH of a bicarbonate-carbonic acid buffer is 5.41. Calculate the ratio of the concentration of…

A: According to Henderson Hasselbalch equation, the pH of the acidic buffer is given as: pH = pKa +…

Q: Classify the following solutions as one of these types AND calculate the pH: strong acid, strong…

A: Given,a) 0.040 M NaF (Ka for HF = 7.2 x 10-4)b) 10 M HClO4c) A solution made by mixing 10.0 mL of…

Q: Calculate the pH of a buffer system containing 1.5 M NH3 and 1.5 M NHẠCI. (K, of NH, the acid in…

A:

Q: Suppose you want to make a buffer with a pH of 6.90.  Which of the following acid/conjugate base…

A: The pKa value of the acid gives an idea of which conjugate acid-base pair should be chosen for the…

Q: 1a) How many moles of CH₃NH₃Cl  need to be added to 200.0 mL of a 0.500 M solution of CH₃NH₂ (Kb for…

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

Q: Assuming equal concentrations of conjugate base and acid, which one of the following mixtures is…

A:

Q: What is the pH of a buffer solution that is 0.21 M methylamine and 0.20 M methylammonium chloride?…

A: The solution can be easily determined using the Handerson HasselBach equation- pOH = pKb + log…

Q: Let’s build a buffer using hypobromous acid (HBrO, Ka = 2.3×10−9) and hypobromite ion (BrO−). If…

A: Given: The concentration of hypobromous acid [HBrO]=0.100 M Ka=2.3×10−9 pKa= -log (2.3×10−9)…

Q: You have 150 mL of 1 M ammonia solution (pKa=9.25). What volume of 1 M hydrochloric acid is needed…

A: pKa=9.25-log(Ka)=9.25Ka=5.62×10-10pH=-logH+=9.5H+=3.16×10-10

Q: Calculate the pH of a buffer solution prepared by dissolving 0.78 mole of sodium fluoride (NaF) and…

A:

Q: A butanoic acid/sodium butanoate (C3H7COOH/NAOOCC3H7) buffer is prepared to 1.14x10-2 mol L-1…

A: pH = pKa + log(salt / acid)  pKa = -log Ka

Q: You need to prepare 100.0 mL of a pH 4.00 buffer solution using 0.100 M benzoic acid (pK, = 4.20)…

A: Given,  Volume of the buffer solution = 100.0 mL  pH = 4.00  [Benzoic acid] = 0.100 M  [Sodium…

Q: What is the pH of a buffer solution that is 0.602 M in hydrofluoric acid and is 0.455 M is potassium…

A:

Q: A student wants to make a pH 4.0 buffer solution. She decides to use a buffer made from formic acid…

A: Henderson Hasselbalch equation gives the equation to estimate the pH of buffer solution. pH=pKa +…

Q: How many moles of hydrofluoric acid, HF, must be added to 150 mL of 0.17 M sodium fluoride to give a…

A: Using Henderson - Hasselbalch's equation we can determine the ratio of [NaF]/[HF] - The pKa of HF…

Q: What mass of NaOH would be added to a one liter 0.200 M solution of acetic acid (pKa = 4.76) to…

A: Given : Volume of solution = 1 L  Concentration of acetic acid = 0.200 M And pH of solution = 4.76…

Q: How many moles of NaOH need to be added to 200.0 mL of a 0.200 M solution of HF to make a buffer…

A: In order to estimate the buffer solution's pH, the expression of Henderson-Hassselbalch is utilized.…

Q: Which is true about buffer solutions?  -they hold the pH close to the pKa  -they contain comparable…

A: Buffer solution- It is a chemical added during chemical reaction for control of pH of reaction. For…

Q: You start with 100.0 mL of 0.20 M CH3COOH in a flask.  The Ka of CH3COOH is 1.8 x 10-5. You add…

A: After adding NaOH we get buffer solution as it form mixture of weak acid and salt of this weak acid…

Q: A chemistry graduate student is given 125. mL of a 0.30M methylamine (CH₂NH₂) solution. Methylamine…

A: Answer: Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: pH buffer is a solution that resists changes in pH when acids or bases are added to it—typically, a…

A: Given data contains, Volume of the solution is 7.00 L. pH of the solution is 12.00. Total…

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.