What is the pH of a buffer that consists of 0.412 M methylamine CH3NH2 and 0.219 M methylammonium chloride CH3NH3CI? Kb of methylamine is 4.5 * 10^-4.

Q: The pH of a bicarbonate-carbonic acid buffer is 5.63. Calculate the ratio of the concentration of…

A: The Henderson Hasselbalch equation for acidic buffer is given as :

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: A chemistry graduate student is given 100.mL of a 0.40M trimethylamine ((CH3)3N) solution.…

A: Given : concentration of (CH3)3N = 0.40 M volume of (CH3)3N solution = 100 mL = 0.1 L…

Q: Determine the mass of solid NaCH3COO that must be dissolved in an existing 500.0 mL solution of…

A: Given: Initial concentration of CH3COOH = 0.2 M Volume of solution = 500.0 mL = 0.5 L pH of solution…

Q: A chemistry graduate student is given 100. mL of a 0.90M trimethylamine ((CH3)₂N) S solution.…

A: Volume of trimethylamine, solution = 100 mLConcentration of trimethylamine solution = 0.90 MThe…

Q: A chemistry graduate student is given 300. mL of a 1.40M ammonia (NH, solution. Ammonia is a weak…

A: Given: The volume of NH3 is 300 mL. The molarity of NH3 is 1.40 M. pH is 9.81. Kb is 1.8×10-5.

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: Calculate the pH of a buffer formed by mixing 85.0 mL of 0.130 M lactic acid, HC3H5O3, with 95.0 mL…

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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: A chemist wishes to prepare 121.00 mL of acetic acid/sodium acetate buffer solution with a pH of…

A: Given,  A chemist wishes to prepare 121.00 mL of acetic acid/sodium acetate buffer solution with a…

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: What mass (in g) of sodium formate, HCOONA, must be added to 10.0 L of a 0.483 Maqueous solution of…

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Q: (a) Calculate the pH of the 0.30 M NH3 / 0.35 M NH4Cl buffer.   What is the pH of the buffer after…

A: A buffer solution is made up of weak acid or base with its conjugate base or acid respectively. pH…

Q: What is the ph of a buffer composed of 1.00M NH4 and 0.50M NH4Cl? Kb=1.85x10^-5

A: The base ionization constant for acid is 1.85×10 -5.

Q: A buffer solution contains 0.77 mol of hydrosulfuric acid (H2S) and 0.43 mol of sodium hydrogen…

A: Here the reaction is, H2S(aq) + H2O(l) ⇌HS- (aq) + H3O+(aq) Here, Ka= 9.5×10-8 From Henderson…

Q: A buffer is made by adding 0.18 mol/L of sodium propanoate (NaPr) to 0.12 mol/L solution of…

A: a) Since the acid HPr is a weak acid  hence its salt i.e NaPr will undergo hydrolysis as per the…

Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.120 mol of CH₃NH₃I?

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

Q: A chemistry graduate student is given 250. mL of a 1.30M pyridine (C,H,N) solution. Pyridine is a…

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Q: 1. A buffer is formed by mixing 65.0 mL of 0.82 M acetic acid (CH3CO2H) with 80.0 mL of 0.64 M…

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Q: A solution is prepared that contains 25.0 mL pyridine, C5H5N, d = 0.978 g/ml and 27.6 g pyridinium…

A: we have to calculate the pH of solution

Q: What quantity in moles of CH₃NH₃Cl  need to be added to 200.0 mL of a 0.500 M solution of CH₃NH₂ (Kb…

A: We have given that pH = 10.90and we know that   pH + pOH = 14So                    pOH = 14- (10.90)…

Q: A buffer is made using 100.0 mL of 0.100 M CH3 CH2 COOH (propanoic acid) and 100.0 mL of 0.100 M…

A: Buffer solution is resistance to pH change . If small amount of acid or base is used , then there is…

Q: A chemistry graduate student is given 125. mL of a 1.20M dimethylamine ((CH3)₂NH) solution.…

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Q: A chemistry graduate student is given 450. mL of a 0.50M methylamine (CH,NH,) solution. Methylamine…

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Q: A buffer consists of 0.50 M NaH₂PO₄ and 0.40 M Na₂HPO₄.Phosphoric acid is a triprotic acid…

A: A buffer solution is prepared by mixing a weak acid and its conjugate base in the aqueous medium.…

Q: Calculate the pH of a buffer formed by mixing 85.0 mL of 0.130 M lactic acid, HC3H5O3, with 95.0 mL…

A:

Q: A buffer contains 0.15 mol of propionic acid (C2H5COOH)and 0.10 mol of sodium propionate (C2H5COONa)…

A: A solution of propionic acid and sodium propionate form a buffer solution therefore a solution…

Q: You are required to prepare a buffer (pH sodium propionate. The concentration of the propionate must…

A:

Q: A chemistry graduate student is given 300. mL of a 1.60M pyridine (C H,N) solution. Pyridine is a…

A: I am providing you an image that has solution of his question please have a look and try to…

Q: A chemistry graduate student is given 250. mL of a 1.40M trimethylamine ((CH,) N) solution.…

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Q: A chemistry graduate student is given 450. mL of a 1.10M methylamine (CH,NH,) solution. Methylamine…

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Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.230 mol of CH₃NH₃I?

A: g Given: A buffer solution is made with 0.580 mol of CH3NH2 and 0.230 mol of CH3NH3I. Kb of CH3NH2…

Q: A buffer contains 0.010 mol of lactic acid (pKa = 3.86) and 0.050 mol of sodium lactate per liter.…

A: Buffer solutions are solutions that can resist pH changes. Buffer solution contains a weak acid/base…

Q: A buffer solution contains 0.89 mol of phenol (HC6H5O) and 0.86 mol of sodium phenoxide (NaC6H5O) in…

A: The classification of buffers is based on the pH value. When pH comes in 0-7 range, it is named as…

Q: Calculate the pH of a buffer when 0.010 moles of NaOH is added to 100. mL solution that is 0.20 M…

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