Consider a buffer made by adding 52.3 g of (CH3)2NH¿l to 250.0 mL of 1.42 M (CH3)2NH (Kb = 5.4 x 10-4) What is the pH of the buffer after 0.300 mol of H* have been added?

Q: A buffer is composed of 0.200 M (CH3)2NH (Kb = 5.9 x 10-4) and O.250 M (CH3)2NH2NO3 . What is the pH…

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Q: What is the molar solubility (in mol L-1) of a salt in pure water with general molecular formula MX2…

A: general molecular formula MX2 (where M is a cation and X is an anion) that has Ksp = 5.01 x 10-10…

Q: Calculate the solubility (in M) of cobalt(11) hydroxide, Co(OH)2(s) in H2O. Kp 3.80x1016 at a…

A: Given, the Ksp of cobalt(II) hydroxide = 3.80×10-16 We have to calculate the solubility of…

Q: Consider a buffer made by adding 55.5 g of (CH3)2NH2I to 250.0 mL of 1.42 M (CH3)2NH (Kb = 5.4 x…

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Q: Will a B(OH)₃ precipitate form if 150.0 mL of 0.002 M BX₃ is mixed with 250.0 mL of pH 0 Ba(OH)₂…

A: Ksp of B(OH)3 = 1.9 × 10-13 Molarity of BX3 = 0.002 M Volume of BX3 = 150 mL or 0.15 L BX3…

Q: Consider a buffer made by adding 42.3 g of (CH3)2NH2I to 250.0 mL of 1.42 M (CH:)»NH (Kb = 5.4 x 10…

A: A buffer is made of a weak base and salt of that base. When an acid is added to the buffer, the base…

Q: What is the solubility of silver iodide in grams per milliliter at a temperature at which the Ksp of…

A: The solubility of Ag+ and I- ions in the aqueous solution is considered to be s. It can be…

Q: Consider a buffer made by adding 48.3 g of (CH3)2NH2I to 250.0 mL of 1.42 M (CH:)2NH (Kb = 5.4 x…

A: Answer:- This question is answered by using the simple concept of calculation of pH of a buffer…

Q: What quantity in moles of CH3NH;CI need to be added to 200.0 mL of a 0.500 M solution of CH3NH2 (Kb…

A: Given  Kb for CH3NH2   =  4.4 × 10-4  Volume of CH3NH2 solution  =  200 mL Molarity of CH3NH2…

Q: What is the solubility of PBF2 in a solution that contains 0.0400 M Pb2* ions? (Ksp of PbF2 is 3.60…

A: PbF2↔ Pb+2+F-let initial concentration of Pb+2=x ,     F-=2x Mwhen , PbF2 added to a solution , that…

Q: 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?

A:

Q: The solubility product constant for La(IO3)3 is 1.00×10-11 at 25 oC. How many grams of La(IO3)3 can…

A: Given, solubility product constant for La(IO3)3 is 1.00×10-11 0.100 M KIO3

Q: Calculate the pH of a carbonate buffer system that contains 0.0065 M HCO3 and 0.0084 M CO32-. The Ka…

A: The dissociation of HCO3- is as follows: By definition the Ka is,

Q: Consider the titration of a 60.0 mL of 0.317 M weak acid HA (Ka = 4.2 x 10⁻⁶) with 0.400 M KOH.…

A: Chemical equation: HA (aq)  +    KOH (aq)  ------->   KA (aq)   +   H2O Number of mmols of KA…

Q: What is the pH of a buffer made from 0.580 mol of CH,NH, (Kb = 4.4 x 10-4) and 0.250 mol of CH;NH,1?

A: ans: PH  of solution is 11  Explanation : given:  [ch3nh2]= 0.580 mol , [ch3nh3I]= 0.250 mol ,and…

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 105)…

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Q: Zinc hydroxide Zn(OH), has Ksp=4.5x10-17 In pure water calculate its małor solubility ?

A: Given data contains, Ksp=4.5×10-17 The dissociation reaction of zinc hydroxide is given as,…

Q: Consider a buffer made by adding 42.3 g of (CH3)2NH2I to 250.0 mL of 1.42 M (CH:)2NH (Kb = 5.4 x 10…

A: (CH3)2NH is a weak base and (CH3)2NH2I is its salt with a strong acid HI. Thus, the mixture is a…

Q: Consider a buffer made by adding 132.8 g of NaC,H5O2 to 300.0 mL of 1.31 M HC,H5O2 (Ka = 6.3 x 10-5)…

A:

Q: What volume of 0.110 M Hydrochloric acid needs to be added to 30 mL of 0.100 M ammonia to make a…

A: We know the Henderson-Hasselback equation is, pH=pKa +salt/acid Given Value;   The concentration of…

Q: What is the minimum mass of Mg(NO3)2 that must be added to 1.00L of a 0.760 M HF solution to begin…

A: Let us solve this question step by step.

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)…

A:

Q: Consider a buffer made by adding 32.7 g of (CH₃)₂NH₂I to 250.0 mL of 1.42 M (CH₃)₂NH (Kb = 5.4 x…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: Consider a buffer made by adding 46.9 g of (CH₃)₂NH₂I to 250.0 mL of 1.42 M (CH₃)₂NH (Kb = 5.4 x…

A: Buffer is the solution that resists the change in pH.  This solution tries to main the minimum…

Q: The solubility product for chromium(III) fluoride is Ksp = 6.60 X 10-11. What is the molar…

A: Given, Solubility product of chromium(III) fluoride = 6.60*10-11. The reaction of chromium(III)…

Q: Tris(hydroxymethyl)aminomethane is a common base used to prepare buffers in biochemistry.  Its Kb is…

A:

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: Consider a buffer made by adding 132.8 g of NaC₇H₅O₂ to 300.0 mL of 1.09 M HC₇H₅O₂ (Ka = 6.3 x 10⁻⁵)…

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Q: What is the molar solubility s of zinc hydroxide at 25°C? The Kap for Zn(OH)2 is 1.8 x 10-14 at…

A:

Q: Consider the titration of a 60.0 mL of 0.317 M weak acid HA (Ka = 4.2 x 10⁻⁶) with 0.400 M KOH.…

A: The titration reaction taking place can be written as, => HA + KOH ------> KA + H2O Given :…

Q: Hi, I need help

A: The reaction taking place is,

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

A:

Q: 4.) A solution contains 7.84 x 10 8 M of copper ion (Cu2*) and has a pH of 9.118. Does copper(II)…

A: Given that:  [Cu2+] = 7.84×10-8M pH = 9.118  Ksp of Cu(OH)2 = 1.10×10-15 Using: pH + pOH = 14 pOH =…

Q: Consider a buffer made by adding 52.3 g of (CH3),NH2I to 250.0mL of 1.42 M (CH3)¿NH (Kb = 5.4 x…

A: The concentration or Molarity of salt is calculated by - M = w×1000/m×V Here, M = Molarity of Salt,…

Q: Calculate the solubility (iny / L) of CaSO 4 (s) 0.450 M Na 2 SO 4 (aq) at 25 degrees * C . The K sp…

A: Dissociation of CaSO4 is given as follows – CaSO4 ⇌ Ca2+ +   SO42- Now, we have to calculate the…

Q: Suppose that the solubility of calcium iodate are 2.5 g/L at 20oC and 5.5 g/L at 60oC. What are the…

A: I = Atomic mass of Ca + 2(Atomic mass of I) + 6(Atomic mass of O) = [40+2(127)+6(16)] g/mol = 390…

Q: What is the molar solubility (in mol L-1) of a salt with general molecular formula MX (where M is a…

A: Given data :  1.Initial solubility of M+ = 0.534 mol-1 2. Ksp of MX = 2.1 x 10-8

Q: The value of Ksp of AgCl is 1.8 x 10-10. What would be the molar concentration of Ag+ and Cl- in…

A: Balanced reaction for the given process is, AgCl (aq)<------> Ag+ (aq) + Cl- (aq)   Fir given…

Q: A volume of 500.0 mL of 0.180 M NaOH is added to 545 mL of 0.250 M weak acid (K, = 6.39 x 105). What…

A:

Q: What is the pH of the buffer that results when 32 g sodium acetate (NaCH3CO2) is mixed with 500.0 mL…

A: Calculate the number of moles of sodium acetate. The molar mass of sodium acetate is 82 g/mol.

Q: What is the molar solubility of Pb(OH)2 in a pH 8.50 solution? The Ksp for Pb(OH)2 is 1.43 x 10-20

A: Lead(II) hydroxide gets dissociation in to their ions, Lead(II) hydroxide dissociates forms Pb2+ ion…

Q: If 600 mL of some Pb(NO3)2 solution is mixed with 350 mL of 1.80 x 10−2 M NaCl solution, what is the…

A: First, the reaction between Pb(NO3)2 and NaCl is shown below, From given molarity value of NaCl the…

Q: The Ksp of AgBr is 5.0 x 10^-13 . What is the molar solubility of AgBr.

A: Given data is as follows: The solubility product constant (Ksp) = 5.0×10-13 The molar solubilty (S)…

Q: What is the molar solubility of Mg(OH)2 in a basic solution with a pH of 11.00? Ksp for Mg(OH)2 is…

A: Molar Solubility is the total no. of moles of a compound that can dissolve in 1 liter of solution…

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

A:

Q: Consider a buffer made by adding 42.3 g of (CH3)2NH2I to 250.0 mL of 1.42 M (CH:)»NH (Kb = 5.4 x 10…

A: pH is a scale which is used to determine the acidity or basicity of a solution. pH = pKa + log…

Q: Consider a buffer made by adding 52.3 g of (CH3),NH,l to 250.0 mL of 1.42 M (CH3)2NH (Kb = 5.4 x…

A:

Q: What is the molar solubility of Ca(OH)2 in the presense of dissolved Cacl2 if the volume of the…

A: Ca(OH)2 dissolves as: Ca(OH)2 (s) = Ca2+ (aq) + 20H- (aq) So, Ksp = [Ca2+ ][01-112 , where [..]…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.