How many milliliters of 0.626 M KOH should be added to a solution containing 5.00 g of HEPES to give a pH of 7.40?

Q: would

A: [H+] = mass of HCl / [ molar mass of HCl • volume of HCl Solution ]  [H+] = 0.500g / ( 36.46gmol-1 •…

Q: What is the original molarity

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Q: What is the pH of a solution prepared by mixing 75.10 mL of 0.02250 M NaOH with 19.22 ml of 0.08780…

A: Given:Volume of NaOH = 75.10 mLMolarity of NaOH  = 0.02250 MVolume of HCl = 19.22 mlMolarity of HCl…

Q: How many moles of NO3 - are present in 250.0 mL of a nitric acid solution having a pH of 5.10?

A: Nitric acid is strong acid , having dissociation constant equal to 1. pH of any substance is…

Q: What mass of LIOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of…

A: The given data contains, Volume of LiOH = 300 ml pH = 11.91

Q: what is the pH of a solution obtained by mixing 225 mL of 0.680 M HCl with 565 mL of an HCl solution…

A: Here, we have to calculate the pH of a solution obtained by mixing 225 mL of 0.680 M HCl with 565 mL…

Q: An unknown weak base with a concentration of 0.0910 M has a pH of 10.70. What is the Kb of this…

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Q: How many ml of 0.5 M HCl must be added to 100.0 ml of a 0.2 M Imidazole (C3H4N2 ; Kb=6.3x10-8)…

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Q: Calculate the pH of a solution prepared by dissolving 5.00 g of NaCIO in 400.0 mL of water.

A: Mass of NaClO  = 5.00g Volume of solution = 400.0 mL=400 ×10-3L Ka = 2.9 × 10-8

Q: What volume (in mL) of 8.84 M HBr would be required to make 300.0 mL of a solution with a pH of…

A: Given that: Molarity of HBr = 8.84 M Volume of solution (Vsol) = 300.0 mL = 0.3 L pH = 2.97 Volume…

Q: What volume of 1.558 mol L-1 solution of NaOH is required to make 9.20 L of a solution with a pH =…

A: The solution is provided in the image below

Q: How many moles of pure NaOH must be used to prepare 1.0 L of a solution that has pH = 12.12?

A: Answer :- 0.01318 mol Moles of NaOH must be used to prepare 1.0 L of a solution that has pH = 12.12…

Q: An unknown weak base with a concentration of 0.170 M has a pH of 9.15. What is the Kb of this base?

A: Solution:       Weak bases on dissociation show partial ionization. This means that an equilibrium…

Q: An unknown weak base with a concentration of 0.170 M has a pH of 9.63. What is the Kb of this base?

A: The weak base dissociates feebly in an aqueous solution to furnish the hydroxide ions. For example,…

Q: How many grams of citric acid and sodium citrate must be added to 1L of water to produce a solution…

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Q: 4) What is the mass of NaOH should be present in 0.250 L of solution to obtain a solution to obtain…

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Q: If 5.00 mL of 6.00M HCl is added to 95.00 mL of purewater, the final volume of the solution is…

A: If 5.00 mL of 6.00M HCl is added to 95.00 mL of pure water, the final volume of the solution is…

Q: What mass of LiOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of…

A: Given:  pH = 12.05  Volume of solution= 300 ml

Q: Calculate the pH of a solution prepared by diluting 3.0 mL of 2.5 M HCl to a final volume of 100 mL…

A: For the constant number of moles, the product of molarity and volume is constant. M1V1=M2V2

Q: An unknown weak base with a concentration of 0.170 M has a pH of 10.26. What is the Kb of this base?

A: We have pH as 10.26, concentration as 0.17 M, we have to calculate the Kb of the base .

Q: What mass of solid KOH is necessary to prepare 800.0 mL of a solution having a pH = 11.56?

A: Given data: pH of the solution is 11.56 Volume of the solution = 800 mL Formula used: pH + pOH = 14…

Q: What mass of LIOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of…

A: Given :- pH = 11.71               Volume of solution = 300.0 mL  To calculate :- mass of LiOH needed…

Q: If 5.00 mL of 0.500 M NaOH are added to 10.00 mL of 0.300 M HCl, what is the final pH?

A: pH is used to measure the concentration of hydronium ion.  The expression for the calculation of pH…

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: How many milliliters of 1.20 M HCl should be added to 10.0 g of tris to give a pH of 7.60 in a final…

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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: 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: The pKa of HOCl is 7.5. Calculate the pH of a 0.31 M solution of HOCl. How else can this concept be…

A: pKa: It is used to indicate strength of an acid. And it is obtained by negative log of acid…

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

A: Given: pH is 12.40 Volume s 500.0 mL

Q: If you mix 23.6 g of KOH in 16.5 liters of water, what is the pH?

A: pH is defined as the negative logarithm to the base 10 of H+ ion Concentration expressed in mol/L.…

Q: What volume of water must be added to a 26.33 mL solution of a pH = 1.17 solution of HClO4 to raise…

A: Initial Volume = 26.33 Initial pH = 1.17 Final pH = 3.53

Q: What volume (in mL) of 8.84 M HBr would be required to make 300.0 mL of a solution with a pH of…

A: Given data of the following, M1 = 8.84 M , V1 = ? For second case, pH = 3.15, V2= 300.0 ml

Q: What volume (in mL) of 15.8 M HNO3 would be required to make 500.0 mL of a solution with a pH of…

A: Here, we have to find the volume of 15.8 M HMNO3 that would be required to make 500.0 mL of a…

Q: What volume (in mL) of 9.2 M HCIO, would be required to make 500.0 mL of a solution with a pH of…

A: pH of the solution determines the acidic or basic nature of the solution. It is given that pH of the…

Q: An unknown weak base with a concentration of 0.170 M has a pH of 9.42. What is the Kb of this base?

A: Given is Concentration (c) = 0.170 M pH = 9.42 Kb = 0.170

Q: How many moles of NO3- are present in 250.0mL of a nitric acid solution having a pH of 5.10?

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Q: An unknown weak base with a concentration of 0.170 M has a pH of 9.64. What is the Kb of this base?

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Q: How many moles of NH3  would need to be added to 512.9 mL of a 0.25 M solution of NH4Cl to produce a…

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Q: What volume (in mL) of 15.8 M HNO, would be required to make 500.0 mL of a solution with a pH of…

A: Given:  15.8 M HNO3 500.0 mL of a solution with a pH of 3.20

Q: what is the ph of a solution prepared by adding 40mL if 0.40 M sodium hydroxide to 60 mL of 0.10 M…

A: Volume of NaOH = 40 mL Molarity of NaOH = 0.40 M Volume of H2SO4 = 60 mL Molarity of H2SO4 = 0.10 M…

Q: How many milliliters of 0.500 M NaOH should be added to 10.0 g of tris hydrochloride to give a pH of…

A: Given data contains, Molarity of sodium hydroxide is 0.500 M. Amount of tris hydrochloride is 10.0…

Q: How many milliliters of concentrated hydrochloric acid solution (36.0% HCI by mass, density = 1.18…

A: Solution: Calculation of molarity of diluted solution having pH =2.05 : From the pH given for we can…

Q: How many moles of conjugate base should be added to 315 mL of 0.45 M HLac to give a pH of 4.00?

A: pKa of HLac = 3.85  Moles of HLac = 0.45 x 0.315 = 0.14175 mol Let moles of conjugate base ( Lac- )…

Q: How many mL of 0.500 M NaOH should be added to 10.0 g tris HCI to give a pH of 7.60 in a final…

A: Here is your answer...........

Q: What mass of KOH is necessary to prepare 830.0 ml of a solution having a pH = 11.49? Mass = g

A: Find the mass of KOH....

Q: What is the PH of a solution containing 10 mM NH4CI in a volume of 100 ml ?

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Q: )What is the pH of a solution composed from 52.0 mL of 0.128 M HCI with 48.0 mL of 0.235 M NaOH?

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Q: What mass of LIOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of…

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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.