What ratio of CH₂NH₂ to CH₂NH₂* is needed to prepare a pH 10.10 buffer? (Kb for CH₂NH₂ is 4.4 × 104) +

Q: What is the pH value of the final solution when 50 mL of a 0.5 M NaOH solution is added to 50 mL of…

A: Given: Volume of NaOH = 50 mL Molarity of NaOH = 0.5 M Volume of acetic acid = 50 mL Molarity of…

Q: What is the pH of a 75.0 ml of a 0.1 M pyridine (C5H5N) solution (Kb= 1.7 x 109) when 100.0 mL of a…

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Q: a weak acid (HA) is titrated with a strong base, such as NaOH what species are decreasing in…

A: When a weak acid (HA) is titrated with a strong base (NaOH),  The reaction: HA + NaOH → NaA + H2O

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: Introduction:  We have to calculate number of moles of NaOH . Given : pH = 3.70  Ka= 6.8 × 10-4

Q: 29. The acid HA has an ionization constant of 10-5, If 50 ml 0.1N HA is diluted to 200 ml and…

A: Ka (HA) = 10-5  pKa = -logKa        = -log ( 10-5 )        = 5Initial Normality of HA =M1 = 0.1…

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

A: We have given that pH = 10.80 and we know that      pH + pOH = 14 So                    pOH = 14-…

Q: Which of the following acids should be used to prepare a buffer with a pH of 3.4? CH3COОН, Ка - 1.8…

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Q: , Which of the following pairs of substances will make aqueous buffer solutions (consider the…

A: A buffer Solution is an aqueous solution of a mixture of a weak acid and it's conjugate base or vice…

Q: What are the [H₃O⁺] and the pH of a buffer that consists of 0.20 M HF and 0.25 M KF (Kₐ of HF…

A: pH is also known as potential of hydronium ion which we determine usually for a solution of…

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: Write Henderson Hasselbalch equation, pH = pKa + log[base][acid] where Ka is the acid dissociation…

Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.180 mol of CH₃NH₃I?

A: Concentration of CH3NH2 = 0.580 Concentration of  CH₃NH₃I = 0.189 Kb = 4.4 × 10-4  pH = ?

Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.100 mol of CH₃NH₃I?

A: Given- Moles of CH3NH2=0.580mol Moles of CH3NH3I=0.100mol Kb=4.4×10-4

Q: What ratio of NaCN to HCN is needed to prepare a pH 10.10 buffer? (Ka of HCN is 4.9 × 10¯1º)

A: The given data contains, pH = 10. Ka=4.9×10-10

Q: What two components must be added to water in order to make a buffer? How would you make an…

A: A buffer solution is a solution whose pH does not change by adding small amount of acid and base.

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: Recall the reaction that will occur here HF + NaOH→ NaF + H2OHere,we recall Henderson Hasselbalch…

Q: In a titration experiment, 31.4 mL of 1.120 M HCOOH is neutralized by 16.3 mL of Ba(OH)2. What is…

A: In a titration experiment, V1=31.4 ml M1 = 1.120 M V2 = 16.3 ml M2 = ?

Q: How many grams of sodium hydroxide are needed to be added to 534 mL of 0.450 M HA solution to…

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Q: You have a buffer composed of HCO3- and CO32-. Which ion represents the weak acid? and Which ion…

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Q: Can someone show me how to answer this problem and the chemical equation of the buffer solution?

A: pH of a buffer solution is given by: Ka = 1.76×10-5 Substituting the values in equation (1):…

Q: You want to prepare a buffer with a pH of 7.1. How will you prepare this buffer?

A: Buffer system can be produced by mixing of the weak acid and its salt or a weak base and its salt.…

Q: Determine the pH of a buffer that is 0.55 M HNO₂ and 0.75 M KNO₂. The value of Ka for HNO₂ is 6.8 ×…

A: Acid & its salt forms acidic buffer.

Q: What is the pH of a buffer that has 0.150 mol HC2H3O2 and 0.120 mol NaC2H3O2 in 2.00 L that has…

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Q: What ratio of NaCN to HCN is needed to prepare a pH 10.10 buffer? (Ka of HCN is 4.9 × 10⁻¹⁰)

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Q: 8. What happens if a large amount of a strong acid or base is added to a buffer? Explain. ( C2)

A: In this question, we will explaining you what happened when we adding larger amount of acid or base…

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…

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Q: The organic compound trishydroxymethylaminomethane is abbreviated Tris and is basic. The conjugate…

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Q: For 240.0 mL of a buffer solution that is 0.195 MM in HCHO2 and 0.295 M in KCHO2, calculate the…

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Q: What ratio of NaCN to HCN is needed to prepare a pH 9.80 buffer? (Ka of HCN is 4.9 × 10⁻¹⁰)

A: Given data is as follows: The pH of the buffer solution = 9.80 The Ka of HCN = 4.9×10-10 The ratio…

Q: What ratio of CH₃NH₂ to CH₃NH₃⁺ is needed to prepare a pH 9.70 buffer? (Kb for CH₃NH₂ is 4.4 × 10⁻⁴)

A: Given details of the CH₃NH₂ - CH₃NH₃⁺ buffer:pH = 9.70Kb for CH₃NH₂ is 4.4 × 10⁻⁴pKb = -log Kb =…

Q: 5. If the pKa of HCOOH is 3.74 and the pH of an HCOOH/NaHCOO solution is 3.11, which of the…

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Q: What ratio of NaCN to HCN is needed to prepare a pH 9.50 buffer? (Ka of HCN is 4.9 × 10⁻¹⁰)

A: The objective of this question is to find the ratio of sodium cyanide (NaCN) to hydrogen cyanide…

Q: Aspirin (C 9H 8O 4) is a weak monoprotic acid (K a = 3.3 x 10-4). You are analyzing a sample for a…

A: The question is based on the concept of pH of the solution.  It is defined as a negative logarithm…

Q: A buffer is prepared from 60.0 mL of 0.100 M formic acid (HCOOH) and 40.0 mL of 0.100 M formate…

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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.