What is the pH of a buffer made from 0.120 mol of HCNO (Ka = 3.5 x 10-4) and 0.410 mol of NaCNO in 2.0 L of solution? %3D

Q: Write the mass-balance expressions for a solution that is a. 0.15 M in HF. 0.15 M HF F b. 0.16 M in…

A: When a chemical reaction occur mass of substance is conserved that is sum of masses of reactant is…

Q: What is the pH of a buffer made from 0.190 mol of HCNO (Ka = 3.5 x 10-4) and 0.410 mol of NaCNO in…

A: Henderson–Hasselbalch equation, pH = pKa + log [salt]/[acid]

Q: How much 10.0 M  HNO3 must be added to 1.00 L of a buffer that is 0.0100 M  acetic acid and 0.100 M…

A: Number of moles of acetic acid can be determined by the given formula.

Q: What is the pH of a buffer that is0-08 M NaA and D.1 HA The ka of AA =1-0 x 104 a 2.16 b. 3.91…

A: In multiple questions, we solve only one question according to Bartleby guidelines. If you want…

Q: Acetate buffers are used in biochemical studies of enzymes and other chemical components of cells to…

A: Given values concentration of acetic acid = 0.10 M Concentration of sodium acetate = 0.10 M Acid…

Q: A. Calculate the pH of a buffer made from 0.28 M HNO2 and 0.23 M NO2.. The Ka for HNO2 is 4.6 x…

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Q: buffer

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Q: What is the pH of a buffer made from 0.350 mol of HBrO (Ka = 2.5 × 10-9) and 0.120 mol of KBrO in…

A: Buffer solution: The buffer solution is an aqueous solution consisting of a mixture of a weak acid…

Q: What is the pH of a buffer that is 0.08 M NaAc and 0.1M HAc. The Ka of HAC= 1.0 x 10^-4. O2.16 O…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: 6. A buffer solution contains 0.10M benzoic acid (C6H5COOH, Ka = 6.3 x 105) and 0.10M potassium…

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Q: What is the pH of a buffer that is made by mixing 20.0 mL of 0.10 M H,CO3 and 10.0 mL of 0.20 M…

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Q: If a 30 mL sample of a 0.500 M containing a weak acid (K, = 1.6 x 10-4) is titrated with a 0.200 M…

A: We have weak acid and strong base titration ,we have to calculate the pH at midpoint.

Q: what is the ph of a buffer made from 0.080 mol of HCNO (Ka=3.5x10^-4) and 0.410 mol of NaCNO in 2.0…

A: In this question, we will determine the pH value of buffer solution which is made from the weak acid…

Q: What is the pH of a buffer prepared by mixing 20.0 g of ethylamine CH3CH2NH2, and 20.0 g of…

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Q: What is the pH of a buffer made from 0.190 mol of HCNO (Ka = 3.5 x 10 4) and 0.410 mol of NaCNO in…

A: Given: Ka of acid = 3.5 × 10-4 Moles of acid = 0.190 Moles of salt = 0.410 Volume of the solution =…

Q: Calculate the pH of a buffer system containing 0.25 M HF and 0.5 M NaF. (Ka for HF is 7.1 x 10-4)

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Q: What is the pH of a buffer made from 0.120 mol of WCNO S(Ka=3.5* 10^ -4 ) and 0.410 mol of NaCNO in…

A: Given that,   Moles of WCNO  acid in 2.0 L  = 0.120 mol Moles of NaCNO base in 2.0 L  = 0.410 mol Ka…

Q: What is the pH of  a buffer containing 395 mmoles of HCOOH (Ka = 1.8 x 10-4) and 380 mmoles of KHCOO…

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Q: What is the pH of a buffer made from 0.220 mol of HCNO (Ka = 3.5 x 10-4) and 0.410 mol of NaCNO in…

A: Buffer is a solution which can resist change in pH when small amount of acid or base is added to it.…

Q: What is the pH of a buffer made from 0.130 mol of HCNO (Ka=3.5*10^-4) and 0.410 mol of NaCNO in 2.0…

A: pH of the solution  = 3.96

Q: What is the pH of a buffer made from 0.350 mol of HBrO (Ka = 2.5 × 10-9) and 0.150 mol of KBrO in…

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Q: What is the pH of a buffer made from 0.350 mol of HBRO (Ka = 2.5 × 10-9) and 0.130 mol of KBrO in…

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Q: What is the pH of a buffer solution that is 0.159 M in hypochlorous acid (HCIO) and 0.121 M in…

A: Given: Concentration of hypochlorous acid (HCIO)=0.159 M Concentration of  sodium hypochlorite…

Q: 10.0 mL of 0.02 M carbonic acid (H2CO3) is titrated with 0.01 M NaOH. What is the pH of the carbonic…

A: The question is Based on the concept of titrations. we have to calculate carbonic acid solution pH…

Q: What is the pH of a buffer made from 0.350 mol of HBrO (Ka = 2.5 x 10-9) and 0.090 mol of KBrO in…

A: pKa = -log Ka = -log (2.5 x 10-9) = 9 -log2.5 = 9-0.40 =8.60 Henderson equation: pH = pKa +…

Q: A buffer solution is prepared by dissolving 1.51 g of NH3 (MM= 17.0, Kb= 1.8 x 10^-5) and 3.85 g of…

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Q: Acetate buffers are used in biochemical studies of enzymes and other chemical components of cells to…

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Q: Calculate the pH of an acetic acid solution (initial concentration 0.01 M, K. x 10-5) and the pH of…

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Q: 8- After 20.0 mL of titrant have been added, the solution represents a buffer between 14.0 10.0 6.0…

A: In diprotic acid there will two buffer zones form during the titration.

Q: What is the pH of a buffer made from 0.350 mol of HBrO (Ka = 2.5 × 10⁻⁹) and 0.160 mol of KBrO in…

A: For HBrO , pKa = -log Ka = -log ( 2.5 × 10⁻⁹ ) = 9 - log2.5 = 9 - 0.40 = 8.60 For buffer : pH = pKa…

Q: i. A 1.000L buffer is made of 0.7 M CH3COOH and 0.6 M CH3COONa .What is the pH of the buffer…

A: (i) We have  volume of solution =1 L Molarity of CH3COOH=0.7 M⇒moles =0.7 mol/L ×1L=0.7 molMolarity…

Q: Calculate the pH of a buffer solution that contains 1.00 M CH3NH2 and 1.15 M CH3NH3Cl. (Kb =…

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Q: What is the pH of a buffer made from 0.220 mol of HCNO (Ka = 3.5 × 104) and 0.410 mol of NaCNO in…

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Q: What is the pH of a buffer that is 0.12 M HNO2 and 0.16 M NANO2 and the pKa is 3.35?

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Q: A volume of 500.0 mL of 0.160 M NAOH is added to 545 ml. of 0.250 M weak acid (K, = 8.52 x 10-5).…

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Q: What will be the pH of a buffer

A: Given :-  Concentration of weak acid i.e. HCN = 0.65 M  Concentration of conjugate base i.e. CN- =…

Q: You dissolve 0.194 g of NaOH in 2.00L of a buffer solution that has [H2PO, ] = HPO,2| = 0.188 M.…

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Q: Calculate the pH of a buffer system containing 0.25 M HF and 0.5 M NaF. (Ka for HF is 7.1 x 10-4).

A: The acid ionization constant for HF  is 7.1×10 -4. pKa = -log Ka = -log (7.1×10-4)=3.1

Q: What is the pH of a buffer made from 0.200 mol of HCNO (Ka = 3.5 × 10-4) and 0.410 mol of NaCNO in…

A: Given, the number of moles of HCNO =0.200 molenumber of moles of NaCNO =0.410 molevolume of solution…

Q: what is the ph of a buffer that consists of 0.86 m HBrO (ka= 2.29 x 10-9) and 0.41 M KBr

A: The pH of a buffer solution can be determined using Handerson Hasselbach equation that suggests the…

Q: Calculate the pH of a buffer solution that is 0.750 M CH3NH2 and 0.200 M CH3NH3Cl. For CH3NH2, Kb =…

A: According to the Henderson-Hasselbalch equation, the pOH of a weak base is given by  pOH = pKb +…

Q: What is the pH of a buffer that contains 0.356 M H2C,H6O6 and 0.647 M HC6H606? Ka1 = 7.9 x 10-5 %3D…

A: In the given problem, H2C6O6 is a weak acid and HC6O6- is the salt form of the weak acid. pH of a…

Q: A buffer solution is made that is 0.415 M in CH3COOH and 0.415 M in CH3COO- . (1) If Ka for CH3COOH…

A: Henderson-Hasselbach equation is,                                 Find pKa from Ka.…

Q: What is the maximum volume (in L) of 3.2 M HCl(aq) that the buffer prepared from 154.6 g of Na2HPO4…

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Q: What is the pH of a buffer made from 0.170 mol of HCNO (Ka = 3.5 x 10-4) and 0.410 mol of NaCNO in…

A: Given , mol of HCNO (weak acid)=0.170 M mol of NaCNO (salt)=0.410 M pKa=3.5×10-4 Volume of the…

Q: Calculate the pH of the 0.30 M NH3/ 0.36 M NH4C1 buffer system. What is the pH after addition of 20…

A: A buffer is a solution which resist change in pH and obtained when a weak acid and the salt of its…

Q: What is the pH of a buffer made from 0.350 mol of HBrO (Ka = 2.5 X x 10-⁹) and 0.160 mol of KBrO in…

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Q: What is the pH of a buffer solution consistig of 0.035 M NH3 and 0.050 M NH4 + ? (Ka for HN4+ = 5.6…

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Q: What is the pH of a buffer solution prepared by dissolving 33.7 g NaCH3COO in a sufficient volume of…

A: Solution -

Q: You need to create a buffer at a pH of 4.6, and have a 20 mL solution of 0.22 M CH3COOH. What volume…

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