Would you need NaOH or HCl to bring the pH of 0.050 0 M HEPES to 7.45?

Q: Caffeine is a weak base with pKh = 10.4. What is the pH of a 1.0 M solution of caffeine at 298 K?…

A: For a weak base solution: [OH-] = (Kb x C)1/2 pOH = -log[OH-] pH = 14 - pOH

Q: I place 20.0 mL of deionized water and 2.0mL of 0.10 M NaOH in a beaker. What is the calculated pH?

A: The reaction of NaOH with water is NaOH + H2O ------> Na+ + OH- 0.10M NaOH gives 0.10M Na+ and…

Q: If a neutral solution of water, with pH = 7.00, is cooled to10 °C, the pH rises to 7.27. Which of…

A: Since we know that in any neutral solution, the concentration of H+ = concentration of OH- always…

Q: What does a change from a pH of 2 to a pH of 3 mean in terms of the the concentration of H + ions?

A: What does a change from a pH of 2 to a pH of 3 mean in terms of the the concentration of H + ions?

Q: Calculate the [OH-] and pH of a mixture formed by adding 50.0 mL of 0.0.20 M HCl to 150 mL of 0.010…

A: Given : Concentration of HCl = 0.020 M                                                     (Assuming…

Q: What is the pH of a neutral solution at 10°C, where Ku equals 3.6 × 10-18? pH =

A: Given : Kw at 10 oC = 3.6 X 10-15  Since in neutral solution, the equilibrium reaction taking place…

Q: What is the pH of 0.78 HClO4? 3. Convert 1800 ppm of CuSO4 in percent by mass of CuSO4

A:

Q: Oven cleaner has a pH between 13 and 14. What two whole-number values of x should be used in…

A: pH = -log[H+]  so, [H+] = 10-pH

Q: What is the % ionization of a solution of 0.20 M benzoic acid, C,H,COOH (K¸ = 6.6 x 10 ')? Would a…

A:

Q: If you have 500 ml of .15M Formic Acid, what is the pH of this solution? What is the pKa? How many…

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

Q: Would a 1.0 * 10-8M solution of HCl have pH 6>7, pH = 7, or pH <7?

A:

Q: What is the pH of a solution of 50.00 ml of 0.07500M hydroxyacetic acid, K, = 1.48 x 10, after the…

A: Volume of Hydroxyacetic acid (HA) = 50.0 mL Molarity of Hydroxyacetic acid (HA) = 0.07500 M Ka of HA…

Q: If you mix 350 grams of NACN in 640 ml of water, what is the pH? How many grams of its conjugate…

A:

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: What is the pH of a 0.39 Maqueous solution of a potassium nitrite (KNO,) at 25 °C? The…

A:

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

A:

Q: What is the mass of NaOH that would have to be added to 500 mL of a solution of 0.20 M acetic acid…

A: We have : Volume of solution= 500 ml Molarity of acetic acid= 0.200 M ph of the solution = 5.0   Let…

Q: A 4.0 M HCl solution is used to titrate a 2.0 M KOH solution.   a.   How many ml of the HCl…

A: To  solve the question regarding neutralization reaction.

Q: 6. Methylamine is a weak base, with the formula CH;NH2 and a base-ionization constant of 4.4x10-4 at…

A: Weak Base:- It is a base that upon dissolving in water does no dissociate completely resulting in…

Q: Write the reaction that occurs and calculate the pH. a) 15.0mLof0.10MNaOHisaddedto5.0mLof0.15MHCl…

A: Since, To get pH, [H+] or [H3O+] should be calculated.

Q: A scientist is looking for the K, of an unknown acid, HA. When 5 moles of HA and 10 moles of NaA are…

A:

Q: How many milliliters of 0.75 M HCl is required to neutralize 25.0ml of 0.15 M Ba(OH)2?

A: The balanced equation can be written as

Q: Complete the following statements about the below solutions at 25 °C? 1. The pOH of 9.95 x 105 M KOH…

A: at 25°C ;  pH + pOH = 14.0  pOH = -log[OH-]

Q: If a 5.6 L solution has a pH of 3.6, what will the pH be if the volume is increased to 7.2 L?

A: Given:PH of solution-1 = 3.6V1 = 5.6 L.V2 = 7.2 L

Q: What are [H+] and [OH-] in a 6.02x10^-4 M solution of Ca(OH)2

A: Since we know that Ca(OH)2 is a strong base so it dissociate completely into there ions . And it…

Q: If it takes 0.552 L of 0.6 M NAOH to neutralize 1.1 L of an HCl solution, what is the concentration…

A: Sodium hydroxide reacts with hydrochloric acid, to form sodium chloride and water. The equation for…

Q: Which would have a higher pH, a solution whose pOH is 5.00 or a solution whose hydrogen ion…

A: pH of solution is calculated based on the hydrogen ion concentration. pH = -log[H+] pH = 14 - pOH

Q: Which of the following is the correct mathematical expression to use to calculate the pH of a…

A: The pH of the solution is calculated using the expression: pH=-log [H+] pOH=-log [OH-] In the given…

Q: 6. A solution containing 2.0 M formic acid (HCOOH) is prepared. Enough Hydroboric acíd (HBr; strong…

A: Given :  Molar concentration of HCOOH = 2.0 M  Molar concentration of HBr = 0.12 M  Ka = 1.8 x 10-4…

Q: A solution containing 0.15 M sodium ascorbate, NaC6H7O6, has a pH of 8.65. What is the Kb for sodium…

A:

Q: How do you neutralise 20ml of HCI using NaOH to get Ph value of 7

A: Strong acid and a strong base react completely and neutralize each other and form a salt solution…

Q: 1. Determine the pH of 0.055 Moxalie acid (HCO, K.-50x 10 and K-54x 10) Note both steps are…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: ph of 10ml 2.0 M NaOH + 10mL water

A:

Q: The pKw of seawater at 25°C is 13.776. This differs fromthe usual pKw of 14.00 at this temperature…

A: Given data contains, pKw of seawater is 13.776. pH in seawater is 8.00. Actual pKw of  water is…

Q: How much NaOH (in grams) is needed to prepare 546 mL of solution with a pH of 10.00?

A: ANSWER IS :

Q: Seawater has a pH of 8 while milk of magnesia has a pH ~10. How much more basic is milk of magnesia…

A:

Q: Calculate the pH of the following solutions.  1.50 g of NaOH in 50 mL of the aqueous solution

A: Given: The amount of sodium hydroxide present in 50 mL of water is 1.50 g.

Q: What is the pH of 8.3 x 10-3 M HC1? pH =

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st…

Q: How much NaOH (in grams) is needed to prepare 584ml of solution with a pH of 12.00?

A: Since NaOH is a strong base  Hence it will dissociate completely into ions forming Na+ and OH- ions…

Q: I place 20.0 mL of deionized water and 2.0 mL of 0.10 M HCl into a beaker. What is the calculated…

A: The total volume of solution present in the beaker is 22.0 mL.

Q: Which would have a more basic pH, a solution whose hydrogen ion concentration is 1.0 x 10^-12 M or a…

A: We know that pH is the negative logarithm of the concentration of Hydrogen ion.  pH = - log [H+] And…

Q: Fill in the Blank Would you expect each of the following solutions to lower the pH , raise the pH,…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

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…

Q: What is the pH (to two decimal places) of a 50.0 mL 0.15 M NH3 aqueous solution (at 25 °C) after…

A: Given data,Molarity of NH3=0.15MVolume of NH3=50mL=0.050LMolarity of HCl=0.20 MVolume of…

Q: If the [OH -] concentration in a carbonated beverage is 4.7 x 10-5 M, what is the pOH value?

A: Given : [ OH- ] = 4.5 * 10-5 M

Q: How many grams of NaOH is needed to prepare 350. mL of a pH 10.358 solution?

A:

Q: Would a 1.0 x10-8M solution of HCl have pH < 7, pH = 7, or pH > 7?

A: The pH of 1.0 x10-8M solution of HCl:

Q: Find the [OH-] of the solution, if the [H3O+] is: 5 ´ 10-11 M  = 5 ´ 10-12 M  =

A: Given: [H3O+] is 5×10-11 M. [H3O+] is 5×10-12 M. Introduction: Write the autoionization reaction of…

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

A: Given that: molarity of formic acid = 0.1 M Volume of solution = 400 mL Ka = 1.74×10-4 M.wt of…

Q: Ascorbic acid (Vitamin C, CHO) is a weak diprotic acid, with K = 6.8x10 and K = 2.7x10. What is the…

A: The dissociation constants for ascorbic acid are 6.8×10-5 and 2.7×10-12. Molar mass of Ascorbic acid…

Q: 5. A solution is prepared by adding 1.00 x 1013 mole of strong base NaOH to 1.00 L of aqueous…

A: Here we are required to find the pH of NaOH solution

Q: How many liters of 2.5 M HCl are required te exactly neutralize 1.5 liters of 5.0 M NaOH?

A: Given, Volume of NaOH = 1.5L Molarity of NaOH = 5.0M Molarity of HCl = 2.5M Volume of HCl = ?

Q: hat is the concentration of hydroxide ion in a 0.45 M aqueous solution of hydroxylamine, NH2OH?…

A: The dissociation of hydroxylamine

Q: Methylamine, CH3NH2, has pKb of 3.44. What is the pH of 1.00 M methylamine and will the percent…

A: The ionization reaction of methylamine is as follows, Next determine the Kb value of methylamine.…

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.