What is the pH of a buffer made from 0.580 mol of CH;NH2 (Kb = 4.4 x 10-4) and 0.220 mol of CH3NH31?

Q: 3.2. Calculate the mass of NH&CI that should be dissolved in 525.00 mL of 0.1531 M NH3 (Ko = 1.8 x…

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Q: What is the pH of 1.00 L of the buffer 1.00 M CH3COONa/1.00 M CH3COOH before and after the addition…

A: Answer (a) On addition of a strong base like NaOH to a buffer solution, the weak acid present in the…

Q: What is the component concentration ratio, [BrO2]/[HBrO], of a buffer that has a pH of 7.95 (Ka of…

A: Given data contains, pH of solution is 7.95. Ka=2.3×10-9

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: What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10-4) and 0.200 mol of NaF to…

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Q: What is the pH of a buffer that is 0.200 M H2PO4−and 0.250 M HPO42− at 25°C?

A: The buffer solution is the solution that resists changing the pH of the solution if a small amount…

Q: 10mL of a 0.28 M solution of acetic acid, Ka = 1.8 x 10-5,  is added to a 20mL of 0.18 M solution of…

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Q: What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 x 10-4) and 0.200 mol of NaF to…

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Q: What mass of ammonium nitrate must be added to 350 mL of a 0.150 M solution of ammonia to give a…

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Q: What mass of NaOBr(s) must be dissolved in 122 mL of 0.345 M HOBr to produce a buffer solution with…

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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 are the [H3O+] and the pH of a propanoic acid– propanoate buffer that consists of 0.35 M…

A: Given Values:

Q: A buffer of what pH is needed to give a Mg2+ concentration of 3.0 * 10-2 M in equilibrium with solid…

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Q: What is the pH of a buffer solution made with 0.789M benzoic acid with Ka = 6.5 x 10^-5 and 0.659M…

A: Ka = 6.5 × 10-5  So, pKa =  - log (6.5 x 10-5)          = 4.187 By using Henderson Hasselbalch eqn ,…

Q: Prepare 500 mL of 0.1 M bicarbonate buffer solution, pH = 6, from 0.1 M stock solutions of carbonic…

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Q: 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…

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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 made of 1.4E-1 M CH3COOH(aq) and 4.6E-1 M NaCH3COO(aq)? Ka for CH3COOH =…

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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: Calculate the p H of a buffer containing 0.50 mol/L of pyruvic acid CH3COCOOH, and 060 mol sodium…

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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 0.130 mol of KBrO in…

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Q: What olume of 17.1 M glacial acetic acid (HC2H3O2) must be added to 100.0 mL of 1.25 M KOH to form a…

A: Given, Molarity of glacial acetic acid=1.71M Volume of KOH=100mL Molarity of KOH=1.25M pH of…

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: Consider a buffer made by adding 132.8 g of NaC-H;O2 to 300.0 mL of 1.31 M HC,H;O2 (Ka = 6.3 x 10-5)…

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Q: What ratio of CH3NH2 to CH3NH3* is needed to prepare a pH 10.20 buffer? (Kb for CH;NH2 is 4.4 x…

A: Final answer : 0.4167

Q: What is the component concentration ratio, [CH₃COO⁻]/[CH₃COOH], of a buffer that has a pH of 4.39…

A: The dissociation of weak acid takes place as follows: HA+H2Ol⇌H3O++A- The expression for the…

Q: What is the pH of a buffer that contains 0.15 M CH3COOH and 0.10 M NaCH3COO (Ka = 1.8 x 10-5)?

A: The pH of the buffer is determined by using Henderson-Hasselbalch equation:

Q: What mass of sodium benzoate should you add to 150.0 mL of a 0.17 molL−1 benzoic acid solution to…

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Q: What is the pH of a buffer that contains 0.250 mol of CH3NH2 and 0.450 mole of CH3NH3CI? Kb for…

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Q: What mass of NaOBr(s) must be dissolved in 134 mL of 0.275 M HOBr to produce a buffer solution with…

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Q: What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 x 10-4) and 0.200 mol of NaF to…

A: Interpretation: The pH of a 1.0 L buffer made with 0.300 mol of HF and 0.200 mol of NaF to which…

Q: What volume of 1.00 M NaC2H3O2 should be mixed with what volume of 1.00 M HC2H3O2 to prepare 1.00L…

A: A buffer is a solution that can accept protons (by conjugate base) and donate protons (by acid) at…

Q: What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka =6.8 x 10-4) and 0.200 mol of NaF to…

A: We have to predict the pH of the solution.

Q: What mass (in g) of ammonium chloride (NH4Cl) should be added to 2.60 L of a 0.155 M NH3 to obtain a…

A: Buffer solution is made of weak acid or base and their corresponding conjugate base or acid…

Q: How many grams of sodium acetate (82.03 g/mol) should you add to 250 mL of 0.100 M acetic acid (Ka =…

A: The pKa is calculated as follows,

Q: What olume of 17.1 M glacial acetic acid (HC2H3O2) must be added to 100.0 mL of 1.25 M KOH to form a…

A: Since moles of KOH = concentration of KOH X volume of KOH solution in L = 1.25 X 100 / 1000 = 0.125…

Q: What is the maximum volume of 1.3 M NaOH(aq) that the buffer (pH=5.75) prepared from sodium acetate…

A: Answer: Moles of acetic acid present in buffer solution will be the product of its molar…

Q: What mass of sodium glycolate (98.03 g/mol) must be added to 300.0 mL of 1.00 M glycolic acid…

A: Given: pH of the buffer = 4.00 Ka of glycolic acid = 4.48×10-4 Molarity of glycolic = 1.00 M Volume…

Q: 1. A buffer is prepared containing 1.00 molar Acetic Acid and 1.00 molar Sodium Acetate. What is its…

A: A buffer solution is made by the mixture of a weak acid with its conjugate base or by the mixture of…

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: What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10-4) and 0.200 mol of NaF to…

A: pH is used to determine the concentration of hydronium ion.

Q: Consider the following buffer system: 0.96 M H2CO3 and 1.08 M HCO3-. What is the pH of such a system…

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Q: What is the pH of a buffer that is 0.110 M HPO422 and 0.220 M H2PO4^ 2- at 25°C?

A: Given,The concentration of HPO42- = 0.110 MThe concentration of H2PO4- = 0.220 M

Q: What is the pH of a buffer that contains 0.15 M CH3CHOOH and 0.10 M NaCH3COO (Ka = 1.8 x 10-5)

A: Since the pH of monoprotic acid buffer solution is given by Henderson-Hasselbalch equation as  pH =…

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

A: Solution -

Q: What is the pH of a buffer that consists of 0.412 M methylamine CH3NH2 and 0.219 M methylammonium…

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Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.