Find the pH of a KOH solution made by mixing 123 mg KOH with enough water to make 250 cm3 of solution

Q: What mass of KOH would need to be dissolved in 500.0 mL of water to produce a solution with a pH of…

A: KOH completely dissociates since it is strong base.Concentration of KOH is determined as follows,

Q: Calculate the pH of 0.085 0 M pyridinium bromide, C5H5NH1Br2. Find the concentrations of pyridine…

A: Given information: Concentration of pyridinium bromide = 0.0850 M

Q: What is the pH of a solution that is 2.0 M HF and 2.0 M F–?  Does your answer make sense?

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

Q: You have a 0.0685 M solution of Ca(OH)2 what is the ph of your solution round to 2 decimal place

A:

Q: Consider sample of Sr(OH)2(aq) that was made by dissolving 0.239 g Sr(OH)2(s) in enough water to…

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Q: At 25 °C, how many dissociated OH ions are there in 1285 mL of an aqueous solution whose pH is 1.23?…

A:

Q: What is the ph of a 0.214 M weak base solution? The Kb of the weak base is 0.000033.

A: Given :-  Concentration of weak base = 0.214 M  Kb = 0.000033  To calculate :-  pH of solution

Q: Q3// Grams of Sodium Formate required to add to 40oml of o.1M Formic acid to make the pH of solution…

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Q: A chemist dissolves 52. mg of pure barium hydroxide in enough water to make up 110. mL of solution.…

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

Q: A chemist dissolves 688. mg of pure sodium hydroxide in enough water to make up 130. mL of solution.…

A: Given: Mass of sodium hydroxide = 688.0 mg Volume of solution = 130.0 mL Molar mass of NaOH = 40…

Q: Calculate the pH of a solution prepared by mixing 5.0 mL of a strong acid solution of pH 4.00 and…

A:

Q: An aqueous solution at 25 °C has a pOH of 7.5. Calculate the pH. Be sure your answer has the correct…

A: Given,  At 25 °C, pOH = 7.5

Q: Determine the pH of the HCI solution in the chemical cabinet that is 27% by mass. (Density of H,0 =…

A: The relation between percentage, density and molarity of any solution is : Molarity = (% x 10 x…

Q: What is the pH of a 50 cm3 KOH solution if the concentration of it is 0.0100 mol/dm3. How the pH is…

A:

Q: What is the pH of a solution that contains 0.561g of dissolved KOH in 10.0L of aqueous solution?

A: Mass of KOH =0.561 g Volume of solution = 10 L Molar mass of KOH = 56.10 g/mol pH of solution = ?

Q: what is the pH of solution made by adding 22 g of KoH into water and diluting to 250.0 ml?

A: The mass of KOH is 22g. It is dissolved in water to form of 0.250L of solution. The number of moles…

Q: A chemist dissolves 449. mg of pure potassium hydroxide in enough water to make up 170. mL of…

A: The number of moles of a substance is determined as the mas of that substance upon its molar mass.…

Q: A chemist dissolves 387. mg of pure sodium hydroxide in enough water to make up 140. mL of solution.…

A: Given: Mass of NaOH = 387.0 mg = 0.387 g Volume of the solution = 140.0 mL = 0.140 L Known: Molar…

Q: A solution is made by dissolving 0.0860 moles of Ba(OH)2 in enough water to make 755 mL of solution.…

A: Given information,    0.0860 moles of Ba(OH)2    Volume of solution is 755 mL

Q: Determine the pH of the HCl solution in the chemical cabinet that is 27% by mass. (Density of H2O =…

A: The pH of a given solution is the hydrogen ion concentration in the acidic solution and OH- ion…

Q: What is the pH of a solution made by mixing 30.00 mL of 0.10 M HCI with 40.00 mL of 0.10 M KOH?…

A: It is an example of acid base neutralisation reaction in which an acid is neutralises by the base…

Q: Determine the pH of the HCl solution in the chemical cabinet that is 27% by mass. (Density of H2O =…

A: Molar mass of HCl = 36g/mol Density = Mass/Volume  Density = 1.150 Mass = 1.150 x V Mass in the…

Q: calculate how many millimeters of 1 M NaOH are necessary to make a 100.00 mL solution with a pH of…

A: Calculation  of millimeters  of 1M NaoH required  By dilution  law

Q: A chemist dissolves 723. mg of pure sodium hydroxide in enough water to make up 180. mL of solution.…

A: Given, mass of pure sodium hydroxide (NaOH) = 723. mg = 0.723 g Volume of the solution = 180. mL =…

Q: A chemist dissolves 491. mg of pure sodium hydroxide in enough water to make up 60. mL of solution.…

A: The given data is as follows:       The mass of sodium hydroxide = 491 mg = 0.491 g The volume of…

Q: A chemist dissolves 203. mg of pure barium hydroxide in enough water to make up 60. mL of solution.…

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

Q: At 25 °C, how many dissociated H+ ions are there in 389 mL of an aqueous solution whose pH is 11.71?…

A:

Q: A chemist dissolves 423. mg of pure potassium hydroxide in enough water to make up 130. mL of…

A: Given data,  Mass of pure potassium hydroxide (KOH) = 423 mg  Volume of solution = 130 mL…

Q: A chemist dissolves 717. mg of pure potassium hydroxide in enough water to make up 80. mL of…

A:

Q: An aqueous solution contains 0.050 M HCl at 25.0 °C. What is the pH of the solution?

A: The pH of the solution can be calculated as follows -

Q: A chemist dissolves 512. mg of pure sodium hydroxide in enough water to make up 80. mL of solution.…

A:

Q: At 25 °C, how many dissociated OH ions are there in 1221 mL of an aqueous solution whose pH is 1.26?…

A: pH of an aqueous solution is given 1.26. we know,  pH + pOH=14 Or, 1.26+ pOH=14 Or, pOH=…

Q: The pH of a solution of HCl in water is found to be 1.20. what volume of water would you add to 1.00…

A: HCl is a strong acid so it is completely dissociated in the solution.

Q: Find the pH of a 0.250 M NaC2H3O2 solution.

A: The dissociation reaction with ICE TABLE C₂H₃O₂⁻ + H₂O ⇄ HC₂H₃O₂ + OH⁻ I 0.250 C -x +x +x E 0.250-x…

Q: Find pH of a solution prepared by dissolving 3.0 g of Ca(OH)2 in enough water to make 590 ml…

A: Given :-  Amount of Ca(OH)2 = 3.0 g  Molar mass = 74.1 g.mol-1  Volume of solution = 590 mL  To…

Q: A chemist dissolves 715.mg of pure sodium hydroxide in enough water to make up 60.mL of solution.…

A: Given,

Q: A chemist dissolves 661. mg of pure hydrobromic acid in enough water to make up 310. mL of solution.…

A: HBr ---> H+ + Br-  Since 1 mole of HBr will produce 1 mole of H+  Hence concentration of H+…

Q: he pOH of an aqueous solution at 25°C was found to be 8.10. The pH of this solution is _____ . The…

A: pH is given by the negative logarithm of the concentration of proton. pH = -log[H+] pOH is given by…

Q: A chemist dissolves 252. mg of pure nitric acid in enough water to make up 350. mL of solution.…

A: The mass of nitric acid is = 252. mg The mass of nitric acid is = 252 x 10^-3 g The volume of the…

Q: Calculate the pH of each of the following solutions. a. 0.12 MKNO2 b.0.45 MNaOCl c. 0.40 MNH4ClO4

A: The question is based on the concept of salt hydrolysis. we have to calculate pH of the solution.…

Q: 4. 4.00 g KOH was added to the less basic solution in number 3. What will be the resulting pH of the…

A: Given, Mass of NaOH = 5.00 g  Mass of Ba(OH)2 = 5.00 g  Gram molar mass of NaOH = 40 g/mol  Gram…

Q: A chemist dissolves 505. mg of pure barium hydroxide in enough water to make up 180. mL of solution.…

A:

Q: If a 0.030 M solution of a base has pH = 10.50, find Kb for the base.

A: Given data  pH=10.50 Concentration of solution = 0.030 M Suppose a weak base AOH then dissociation…

Q: A chemist dissolves 523.mg of pure sodium hydroxide in enough water to make up 140.mL of solution.…

A: Mass of NaOH = 523. mg = 539×10-3 g  [ 1 mg = 10-3 g ] Molar mass of NaOH = 40.0 g/mol Moles of NaOH…

Q: A chemist dissolves 505. mg of pure hydrobromic acid in enough water to make up 150. mL of solution.…

A: The molar mass of the compound HBr is 80.9 g/mol. The number of moles of the compound is calculated…

Q: culate the pH of a solution that is 0.0853 M LiNO2 at 25

A: Given : Molarity of LiNO2 = 0.0853M

Q: A chemist dissolves 227. mg of pure hydrobromic acid in enough water to make up 90. mL of solution.…

A: A numerical problem based on pH calculation, which is to be accomplished.

Q: A chemist dissolves 270. mg of pure perchloric acid in enough water to make up 340. ml. of solution.…

A:

Q: The pH of 0.55 M aqueous solution ammonia HN3 at 25.0 degree C is 11.50. What is the value of Kb for…

A: NOTE : You have given HN3 instead of NH3. Since the pH is in basic zone, hence the specie will be…

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.