What volume of 0.0500 M sodium hydroxide should be added to 250 mL of 0.100 HCOOH to obtain a solution with a pH of 4.50? [Ka(HCOOH) = 1.7 × 10-4] Show solution   a. 540 mL b. 420 mL c. 80. mL d. 340 mL e. 500. mL

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Q: A chemist dissolves 451. mg of pure sodium hydroxide in enough water to make up 100. ml. of…

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A: Equation for pH calculation is:

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A: Base dissociation constant Kb is utilized to determine the basic nature of a solution. It refers to…

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Q: 1. What is the pH of an aqueous solution if the [OH -] = 1.35 x 10 -5 M? A. 8.87      B.  5.13…

A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…

Q: At 50°C and 1 atm, K(w)=5.19X10⁻¹⁴. At these conditions,find (a) [H₃O⁺] in pure water, (b)…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A chemist dissolves 670. mg of pure potassium hydroxide in enough water to make up 140. mL of…

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Q: A chemist dissolves 600. mg of pure potassium hydroxide in enough water to make up 120. mL of…

A: Given:Mass of KOH =600mg                          =0.6gvolume of the solution, V=120mLTo find:pH of…

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Q: A chemist dissolves 107. mg of pure potassium hydroxide in enough water to make up 70. mL of…

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Q: 2. Calculate the pH of each solution: (a) 0.0155 M HBr (b) 1.28 × 10-3 M KOH (c) 1.89 × 10-³ M HNO3…

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Q: 6. Which solution has the highest pH? A. 0.10 M HCIO4 (aq) B. 0.10 M HBrO4 (aq) C. 0.10 MHCI0(aq) D.…

A: pH is defined as negative logarithm of hydrogen ions

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A: 1- First question, Calculate the value of Kb for weak base CN- ion :  We know that, Kb × Ka = Kw  Kb…

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Q: A chemist dissolves 212.mg of pure sodium hydroxide in enough water to make up 120.mL of solution.…

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Q: Part 1 Calculate the pH of a solution in which (HO)- 4.26x10 M. Give your answer to two places after…

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Q: M1 x V1= M2 x V2 Where M is molarity and V is volume in L If I have a solution with a pH of 3 and…

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Q: Calculate the pH of a solution of 0.100 M H2SO3. Ka1 = 1.23 x10-2 Ka2= 6.6 x 10-8

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Q: Calculate the pH of a solution that is 0.32 M HNO3 and 0.50 M HOCN. Ka(HOCN) = 3.5 × 10‒4. pH =…

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Q: Find the pH of 0.010 moles of HCI in 10 liters of water.

A: Step : 1           Find the pH of 0.010 moles of HCI in 10 liters of water.

Q: A chemist dissolves 890. mg of pure barium hydroxide in enough water to make up 110. mL of solution.…

A: Mass of barium hydroxide = 890 mg  Volume of solution = 110 ml Temperature = 25 °C  pH of the…

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Q: Acetic acid (HC2H3O2) is a weak acid (Kg 1.8 x10). Calculate the pH of e 17.6 M HC2H3O2 solution. 1…

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Q: Solution X 100 mL of 0.10 M HCI Solution Y 200 mL of 0.50 M NAOH Solution Z 300 mL of distilled…

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Q: 07-13: The diprotic acid Hal. has Kor 1.4 x 10% and Ka 1.2 x 10-¹0 97-Calculate the molarity of H*…

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Q: What is the pH of a solution obtained by adding 158 mL of 0.206 M HCl to 926 mL of an HNO3 solution…

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Q: The pH of a 0.10-M solution of caffeine is 11.16. Determine Kb for caffeine from these data: C8 H10…

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Q: 4(qee) at antun metx 3 ent to taen Gea Lemon Juice ai oloriq Increasingly acidic 27. According to…

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Q: A week diprotic acid H2A has Ka1 = 4.2 × 10–7 and Ka2 = 4.8 × 10–11. Determine the pH of a 0.17 M…

A: Ka1 = 4.2 × 10–7     pKa1 = 6.376 and Ka2 = 4.8 × 10–11    pKa2 = 10.319

Q: solution of 3.71×10-3 M potassium hydroxide? pOH =  B.) What concentration of sodium hydroxide is…

A: Potassium hydroxide(KOH) is strong base. And strong base dissociated completely [OH-] = 3.71 ×10-3 M…

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Q: What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydronium ion? A)…

A: Given : Hydronium ion concentration = [H3O+ ] = 3.98 X 10-9 M

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A: We know that, pH is the negative logarithm of hydronium ion concentration. i.e.,…

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Q: 1.0 M BHNO3 solution has a pH of 3.55. Calculate the Kb of B. Assume a temperature of 25°C

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Q: A chemist dissolves 330. mg of pure potassium hydroxide in enough water to make up 170. mL of…

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Q: Ph a b доби 24 Ph Ph 25 27 CI ОН НО CI 26 28

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